"The band were bloody awful." "I thought they were all right." "The drummer had a nice arse." "How do you know?" "He was sitting down." "Weren't they famous in about '76?" "Don't ask me." "I know even less about that kind of stuff than Oleg." "Hey, screw you." "I am encyclopaedia on the popular music." "Really?" "Elvis, The Beatles, The Stones." "♪ Kalinka, Kalinka, Kalinka, moya!" "♪ V sadu yagoda malinka, malinka moya!" "♪" "So who called it in?" "Westminster City Council maintenance crew." "The body was found under a wall that collapsed around '83, '84, so 28 years ago, minimum." "Right, so it's cold enough for us, then?" "Have you got any spares?" "Of these?" "Yeah." "Might be a bit tight." "Normally I'd say fashion before comfort but, in this instance..." "The bricks effectively entombed him, preserving his clothing." "As you can see, he had his hands tied together." "We're in the antechamber of the subterranean River Stroud which starts at Hampstead Heath, comes up for air in Hyde Park, and flows to the Thames at Westminster Bridge." "What about access?" "Dozens of manholes along the way, this one being the closest." "Why did they wait 27 years to fix the wall?" "Taxpayers aren't marching against Parliament over the state of our underground rivers." "Somebody at the Treasury complained of subsidence and suddenly the money was found." "He was a pacifist." "Poor sod." "You're telling me." "Had his kneecaps smashed." "Jesus!" "We're under the Houses of Parliament and this fellow's wearing anti-war badges and has been kneecapped!" "Well, that's enough to make you paranoid." "A reduction in the billowing of the auricular surface of the ilium and the phase of the pubic symphysis suggests that he was in his late twenties." "Healed bone damage here and here suggests that he'd been shot twice and patched up pretty well." "So, not the cause of death?" "No." "Sharp force trauma across the surface of the cortex here and punctures to the ribs here... ..and here suggest a sharp-bladed implement." "So, there'd have been a lot of blood?" "Yeah, there would have been, which is interesting because there was a lot of blood on his clothing I found but not on the bricks that encased him or the ground underneath." "So it was just a deposition site?" "It looks that way." "Why risk smuggling a dead body down there?" "Especially in Parliament Square, with all that security." "Maybe it was dumped upstream and the river carried it to Westminster?" "Except that there are grilles every 400 yards so it would have been pressed up against one of them." "Are there any other entrances less exposed, apart from the one we used?" "The nearest one is Victoria Station, but then it would have been very indiscreet to drop a bloody corpse down a manhole." "Tying up a man and kneecapping him feels methodical whereas stabbing him repeatedly does not." "What about DNA?" "I should have a result by now, even if it's no result." "PHONE RINGS" "Boyd. 'Jane Hussey, MI5." "I'll be at your office in 10 minutes." "'Sorry about the short notice.' Yeah, but..." "The forensic person ran a DNA search and scored a direct hit." "And, also, I'm guessing, a security flag?" "The body was that of Piers Kennedy, a decorated Falklands veteran who disappeared 28 years ago." "Yeah, I know who Piers Kennedy is, or was." "Please, Jane." "Two things about this are noteworthy." "One, the conspiracy theories that say MI5 did Piers Kennedy in are absolute bollocks." "And two, and this is the tricky bit, the circumstances of his death may pertain to an incident of national security." "Piers Kennedy was not killed by MI5, but his death may pertain to an issue of national security." "You don't have to be Oliver Stone to find those two statements mutually hilarious." "I can't tell you what this incident was, but the government dealt with it covertly because..." "You mean they hushed it up?" "They believed the ensuing panic would undermine the fabric of the nation." "Now what I've told you..." "What have you told me, Jane?" "..you must not share with your team, particularly Dr Grace Foley." "HE LAUGHS Why?" "Why not Grace Foley?" "Because, in the '80s, she was in the peace movement, involved to such an extent that she was placed on a government watch list." "Maybe that says more about Margaret Thatcher than Grace Foley." "Spare me the fashionable liberal revisionism." "It was a different time, Boyd." "The Russians had ICBMs trained on our cities and the KGB had infiltrated the highest echelons of our intelligence service." "Were you part of that cover-up, Jane?" "I want to hear from you the second you find anything that could possibly, maybe, vaguely be outside the purview of a policeman." "Oh, and don't go forgetting you've signed the Official Secrets Act." "That's..." "Piers Kennedy." "Yeah." "Currently residing in your lab." "How did you manage to get a hit on him?" "How do you think?" "I mean, how else?" "DNA." "Eve's search raised a security flag and MI5 told you as little as possible?" "Yeah, more or less." "Piers Kennedy, decorated soldier, leading light of the Young Conservatives, change of heart after the Falklands." "Renounced violence, joined the Campaign Against Nuclear Weapons, the second largest anti-nuclear group outside of CND." "In October '83 he made a stirring speech against the deployment of cruise missiles and two weeks later vanished." "I think I should declare an interest." "I was an activist in the '80s." "I was at that rally in Hyde Park, heard his speech." "Well, actually we were boxed in under Marble Arch." "SHOUTING" "..because the filth wouldn't let the rest of us into the park." "So what if you were there?" "What's so special about that?" "I mean, thousands of people were there, Grace." "NEWSREADER: 'Thousands of people crowd into London's Hyde Park 'for one of Britain's biggest ever anti-nuclear demonstrations.'" "'Our next speaker knows all about war." "'An ex-captain in the Marines, it's Piers Kennedy!" "' CHEERING" "'Listen, it's just common bloody sense that we resist the decision 'to site American nuclear missiles in the UK." "'I mean, do the Yanks think we're mugs?" "'If there's a limited nuclear war Western Europe will be annihilated." "'America must not be allowed to use Britain 'as her unsinkable aircraft-carrier.'" "The enquiry into his disappearance focused on the jealousy angle." "To the widespread ridicule of the left, who were convinced that MI5 had offed him." "So Piers Kennedy was having an affair with Bonnie Yorke, long-term partner of Ralph Palmer, the founder of the Campaign Against Nuclear Weapons." "Bonnie gave birth to Piers's child after he vanished, a little girl." "And at the time of his disappearance, the CANW membership was well over 100,000 people." "Actually, it was well over 150,000 people." "Over 150,000." "And it wasn't just about left and right." "The Campaign for Nuclear Disarmament transcended that, and Piers Kennedy transcended that." "And a lot of sane and rational people think that MI5 did murder him." "Why?" "Because he was single-handedly turning Middle England against the bomb." "They held Ralph Palmer to the wire, trying to get a confession, but they didn't." "They had to let him go." "So you knew him, then?" "A little, yeah." "Ralph?" "'And Bonnie.'" "Dig out what you can, Spence, about Ralph Palmer, will you?" "There's nothing to find out." "Well, the original investigation wasn't completely stupid." "They did investigate Lucy Christie, who was Piers Kennedy's ex-fiancee and the daughter of the then junior defence minister, John Christie." "Lucy Christie, Tory MP?" "Yeah." "She followed her father and grandfather up the slippery pole." "They sweated Ralph Palmer for days." "I bet Lucy never saw the inside of a police station." "Two weeks ago, Korean Airlines Flight 007 was shot down by Soviet interceptors over the Sea of Japan." "'What on earth is moral or ethical about surrendering 'to a regime which slaughters children and calls it national security?" "'" "You should know that I hadn't seen Piers for over a year before he disappeared." "Yeah, I did know." "It's in the file." "So, how do you think I can help?" "You must be feeling very strange." "You worked here all these years, just a few hundred yards from where we found him." "It's horrible." "You can help me by telling me a bit about how your relationship with Piers ended." "Well, the Piers I knew and loved died in the Falklands." "The Piers who came home, he was a hero, a good man, but he was..." "He was a very different man." "In what sense?" "Well, I think it actually started when one of his bullet wounds became infected in the military hospital." "In the end, the infection took longer to heal than the original trauma." "So, what, he felt angry, resentful?" "Mmm, I think he did." "After he was discharged, we travelled round the States for a bit, but he was very distant, constantly questioning the validity of the Falklands War." "Eventually, we agreed to cut our trip short, and he dumped me in the departure lounge of Portland Airport." "Portland, Oregon?" "Portland, Maine." "Maine, OK." "That was in 1982?" "The end of." "So, you're saying that his conversion to pacifism came about as a result of his treatment in that army hospital?" "No, what I'm saying was, that's how it started." "Who he became after they got their claws into him, I can't say." "They?" "Or she?" "I mean she." "Bonnie." "That was the police." "They've found Piers." "Or rather, they've found his body." "Do you need a moment?" "No, I'm fine." "When I was fighting in the Falklands..." "AGGRESSIVE SHOUTING" "..I saw first hand the senselessness of Britain hanging onto its colonial fantasies." "And on the subject of the Falklands, where the bloody hell were the Americans then?" "!" "I'll tell you - nowhere to be seen." "They didn't let us refuel our bloody ships, yet they want us to be their human shield, and they want us to like it." "'The march in London is part of a weekend of anti-nuclear...'" "Phones are ringing off the hook." "Donations, interview requests, TV spots - it's all you." "Come on." "Team effort." "You reach the people we can't." "You show them that speaking out against the bomb is just logical and reasonable." "It doesn't make you some cottage cheese-eating freak." "I've actually always been rather partial to a bit of cottage cheese!" "Oh, stop being so bloody modest!" "It doesn't suit you." "Better go and greet the troops." "Oh!" "They're not the bloody troops!" "This is what was used to tie his hands together." "At first, I thought it was something straightforward like a granny knot, but it's actually more complicated than that." "It's for maritime use, and it's called a handcuff knot." "So, the killer might have a naval or fishing background?" "Mmm, possibly." "Are you OK, Grace?" "Yeah, fine." "PIERS: 'If there's a nuclear war, Western Europe will be annihilated." "'America must not be allowed to use Britain as its unsinkable aircraft carrier.'" "'..our ships, yet they want us to be their human shield, 'and they want us to like it!" "'" "CHEERING" "That was Piers Kennedy!" "Yeah, we know." "I served with him in the Falklands." "Royal Marines." "And now you're marching for peace?" "It's all Piers." "Lots of veterans here today cos of him." "Really?" "He's persuasive." "Good with words." "Not like me." "I don't know, you're doing all right." "Sorry?" "What's your name?" "Murray." "Grace." "What are you doing later, Grace?" "Do you think...they have English newspapers out there?" "They're sure to have the internet." "Right." "I should call Jackie." "I've done it." "What?" "!" "Like you said, I didn't want her to stumble on it and get a shock." "No, no, I mean, why did you?" "Why not?" "She's my daughter, isn't she?" "In all but flesh." "How...?" "How did she take it?" "She said she felt numb." "Still, she's got plenty to distract her." "They're reopening the orphanage next week." "Right." "Ralph, you should've let me tell her." "You know you should." "Hi." "Hi." "I want you to draw up a..." "You know, when they're dead." "Posthumous profile?" "Yeah, I want to know why Piers Kennedy swapped guns for peace." "What?" "Lucy Christie didn't shed any light on it, then?" "Well, yes and no." "So you were a bit of a firebrand, back in the day?" "Not exactly." "I wrote a few articles, made a few speeches, but that's all it took to get on Maggie's shit list." "So, how did you vote in '83?" "Conservative." "Oh." "Come on, everybody did." "Either that or Michael Foot." "What was wrong with Michael Foot?" "Decent, principled, intelligent, definitely." "But prime minister?" "Absolutely not." "So it's just about the leadership, then?" "No, not just." "I wasn't up for unilateral disarmament." "The notion of, "We'll give up ours in the hope that they'll give up theirs."" "I just thought that was well-intentioned but...misguided." "Spoken like a politician." "No, spoken like a friend who doesn't want to start a ruck." "And for your information, MI5 think I'm a fashionable liberal revisionist." "Grace, do you know anything about" "Piers Kennedy owning a Russian hunting dog?" "What?" "!" "I found dried blood and hairs in the treads of Piers Kennedy's shoes." "The blood is his, the hairs are not." "They're dog hairs." "I ran the mitochondrial DNA through the genetic sequence database and - thanks - came back with this." "They're shed from a laika." "It's a hunting dog, indigenous to Siberia." "Since when have dogs been on the GenBank?" "Since last year." "A very thoughtful geneticist." "There are only three laika breeders in the UK, notably John and Susan Christie, trading since 1978." "I checked Who's Who, and Lucy's father, Lord Christie, lists his hobbies as skiing, dog breeding, and his old lady's called..." "Susan!" "Since he lost his seat in '97," "Lord Christie's been a non-executive director of Lucas Hoyt, a US defence company with HQs in London." "They're the guys rebooting Trident, right?" "The biggest contract MoD have awarded this century." "OK, so what are we saying?" "Is he a suspect?" "He may have had contact with Piers, and if so, was it friendly?" "He won't fall for the little chat routine." "He's going to rock up here with a legal team." "Not necessarily, I know the type." "Afford them the arse-kissing deference they expect as their birthright and they roll over and tell you everything." "When HMS Ardent sunk, me and Piers had to dive down and get our ack-acks back." "Only, when we got down there, we found a bunch of Argies had the same idea." "Cheeky bastards!" "One was up for a scrap, I had to knock him out on the side of the hull." "Are you sure you're a pacifist, Murray?" "!" "CHEERING AND APPLAUSE" "Murray." "Piers." "And you are?" "Grace." "Can I borrow this reprobate for a moment, Grace?" "Yeah." "Ralph, I..." "This way." "We're establishing a timeline of Piers Kennedy's last days, and trace evidence suggests he came into contact with a dog - a laika - shortly before he was killed." "You came to me because I breed laikas?" "Because you bought two of them from Siberia six months before Piers went missing." "A dog and a bitch." "Conscientiously, you declared an import from the USSR in the Register of Member's Interests, even though the purchase was made in your wife's name." "Well, that's some impressive digging." "If I had something to hide, I'd be worried." "Well, worried is the last thing that we want you to be, Lord Christie." "It's just that we have to be seen to be dotting the Is with all these Piers Kennedy conspiracy nuts watching." "I'm not sure I grasp your implication." "We're aware of the negotiations between Lucas Hoyt and the Ministry of Defence relating to Trident." "As a non-executive, I have zero role in those talks." "I'm just glad they had me." "Yeah, me too." "Last thing we want to do is rock the boat." "Are you saying this conversation is off the record?" "That's exactly what I'm saying." "What is it you want to know?" "Maybe you're right." "I mean, who am I kidding with this peace lark?" "I was only joking, Murray." "Last night, this prick pushes in front of us in the pub, and before I know it, I've laid him out." "I'm sorry." "It's OK." "No, I want to." "I definitely want to." "I really like you, Grace." "Let's..." "Let's meet up in a week or so." "A lot can happen to a girl in a week or so." "Did you see Piers Kennedy in the days before he disappeared?" "Why would I?" "He'd betrayed my trust, broken my daughter's heart." "Broken my heart, if I'm honest." "With respect, those are all the reasons why you would want to see him." "To let him know how you felt." "He knew very well how I felt." "Can you explain the laika hairs?" "The bitch and the hound didn't mate, they just fought, so I had to split 'em up." "And then..." "You gave one away and kept the other." "Who did you give it to?" "I forget." "You gave it to your daughter." "You gave it to Lucy cos she needed the company." "All a long time ago." "Lucy's flat in Victoria is minutes from where we found Piers." "Did you give her the laika or not?" "What happened to dotting the Is?" "If we're going to kick this into touch, I need to know everything." "Kick what into touch?" "Piers was in Lucy's flat." "So what?" "Nothing, except she's on record as saying she hadn't seen Piers Kennedy for a year." "Not since Portland, Maine." "Are we still off the record?" "Or were you just softening me up?" "PIERS: 'When I was fighting in the Falklands, I saw first-hand 'the senselessness of Britain hanging onto its colonial fantasy...' SHOUTING" "I think it's Russian." "And if we clear it up a bit, we can make out what he's saying." "He's just a heckler." "He's not." "Look at Piers's face." "As soon as the guy says something, he's thrown." "Why would a confident speaker playing to a home crowd be thrown by a mere heckler?" "I think they know each other." "Do we know if Piers spoke Russian?" "He got a first in Slavic studies." "OK." "I'm going to filter out the background noise and rumble..." "Pinch the bandwidth..." "THE HECKLING BECOMES CLEARER" "SHOUTING IN RUSSIAN:" "'Predatel'!" "Predatel'!" "'" "'Predatel' vashikh druzei, predatel' vashei strany, predatel' demokratii!" "'" "He came to tell me she was pregnant." "He thought he was being kind." "Didn't want me to hear it from someone else." "But you didn't want to hear it, full stop?" "The way he saw it, he was putting me out of my misery." "I had been a bit of a bunny boiler." "Calls, letters, tears, terrible DIY poetry." "I think he was heartily sick of me." "Brave, then, to tell you to your face." "I asked him why he didn't just call, and he said he..." "He wanted to make sure I got the message." "Wow, that's pretty brutal." "Cue a bout of very undignified pleading, me asking what she had that I didn't, which got me precisely nowhere." "Then, just as he was leaving, my brother walked in." "DOOR OPENS" "What are you doing here?" "What have you said?" "What have you done to her now?" "Goodbye, Lucy." "Step aside, Hugo." "Who am I talking to now?" "Captain Piers, or commie faggot Piers?" "I'm confused." "So your brother walked into your flat just at that moment?" "Yes, he always used to crash at mine when he was in London." "You kept quiet to protect your brother?" "Yes, well, I'd had a lot of practice at that." "Expand, please." "Well, Hugo was expelled from seven schools." "He only got into Cambridge because of his rugby." "I knew he hadn't killed Piers, but his reputation as a hothead would make him a good suspect." "How did your brother die?" "He drowned in the Lake District." "He was into a thing called free-diving." "No oxygen, no gear." "Just you and the water." "His body wasn't discovered for weeks." "Let's assume that we believe you and that Piers left the flat alive." "It doesn't mean to say that your brother couldn't have killed him later." "Quite the opposite." "Now he had motive to spare." "Piers and I were together for years." "He was more like a big brother to Hugo." "Yeah, but Piers wasn't Piers any more, was he?" "Piers was now the "commie-loving faggot" Piers." "DOOR OPENS" "There's a possibility the heckler knew Piers, and if he knew Piers, there's a chance he knew her." "Allow me to translate." ""Traitor, traitor, traitor." ""Traitor to your friends, traitor to your country, traitor to democracy," ""traitor to your men."" "Do you recognise him?" "SHE CHUCKLES That's Oleg." "Oleg Leontyev." "We were all at Cambridge together." "Who's we?" "Piers, Hugo, Oleg, myself." "Bit of a gang?" "If we were, Oleg was certainly the brains of the outfit." "Are you still in touch?" "Do you know what he does?" "Yes, he works for Lucas Hoyt." "Did your father get him the job?" "Yes, and no." "Daddy's working for him." "That's Oleg for you." "Why is he calling Piers a traitor?" "Oleg's parents were murdered by the KGB." "His view was that if you're pro-unilateral disarmament, then you are pro the most tyrannical and evil regime in history." "And was that your view, Lucy?" "Yes." "Then and now." "♪ Hey, Kalinka, Kalinka, Kalinka moya... ♪" "He's bad, let me tell you." "SHE LAUGHS" "Oi!" "I don't think he got the message!" "Leave it, Hugo." "No, sorry." ""Mr Leontyev is very busy at the moment" doesn't cut it." "I'm a police officer." "I want to talk to him today." "I'm not making myself clear." "Where is Mr Leontyev?" "Where is he right now?" "NEWSREADER: 'Leading the negotiations for Lucas Hoyt is Moscow-born Oleg Leontyev, 'who was cautiously upbeat this morning about the progress of the talks.'" "If Lucas Hoyt can play a role in preserving Britain's status as a great power, the privilege and honour will be ours." "His parents were murdered by the KGB." "He was thrown down the stairs trying to stop them taking his mother and still walks with a limp due to the fall." "And Hyde Park wasn't an isolated incident." "He made a habit of disrupting peace rallies." "Hi." "I remember him." "It's Oleg." "Grace?" "Oh, sorry, I was, um, tied up with something." "Everything OK?" "Oh, yeah, yeah, right as rain." "Sorry?" "You remember him?" "Mm." "See?" "All you had to do was ask." "He was totally fearless." "He used to turn up at meetings, take the mic, tell us all we were Soviet stooges and sleep-walking to our own deaths." "Appeasing the regime that killed your parents." "I see why that would piss you off." "We weren't appeasing Russia per se." "You didn't want to fight them either." "And your point is?" "My point is..." "Oh, Grace." "My point is that we need to speak to Oleg Leontyev." "I'm sorry." "He's not available now." "When he comes in, can you let me know?" "Yes." "Thank you." "Boyd?" "Yeah." "No luck." "'Did you ask where he's going to be tomorrow?" "'" "HE SIGHS Jesus." "PHONE RINGS" "Boyd." "SILENCE" "Hello?" "WHISPERING MAN: 'Scaynes Lake." "Look in Scaynes Lake." "'Not all conspiracies are theories.'" "DIAL TONE" "Sarah?" "Sarah, come and look at this." "Boyd, you have a visitor." "Oh, hello, Jane." "We've intercepted a request from you to interview Oleg Leontyev." "That's right." "It's not going to happen." "I'm sorry, Jane, normally I interview the friends of victims." "Oleg Leontyev went to Cambridge with Piers." "I'm just delivering a message." "This isn't a conversation." "Right." "I think a phone call would have sufficed, don't you?" "You have a reputation for not taking no for an answer." "Leave Oleg Leontyev alone." "He's turning water into wine for the MoD." "They don't want him distracted." "Hi." "Hi." "Sarah, I wonder if I could ask you a favour?" "Sure." "I'm trying to track someone down." "It's an old friend, but I would prefer it if we could keep it between ourselves." "For now." "You mean, don't tell Boyd." "I mean, don't tell Boyd." "His name's Murray Stuart." "He was a marine, and he served in the Falklands." "I know you can find your way round these databases, otherwise I'd do it myself." "Er..." "You're not happy about it?" "No, it's just..." "Why don't you want Boyd to know?" "We've got to dig up everything we can on this Hugo Christie's death." "Forget it." "Local police investigation." "Why?" "Cos this whole pure-diving thing sounds like bollocks." "Free-diving." "Whatever." "So Hugo, Lucy, Piers, Oleg all went to Cambridge together." "All ideologically to the right." "Piers goes to the Falklands, comes back a changed man, breaks up the group." "Something happened." "Something happened, and we're not seeing it." "St Bernard said "See everything." "Disregard much." "Change a little."" "St Bernard didn't have MI5 crawling up his arse." "Grace asked me to ID someone." "She wouldn't say why." "And she told me not to tell you." "What did you say?" "I wasn't happy with the last bit." "Right." "Well, this guy, Murray Stuart, he was in the marines, served in the Falklands, presumably alongside Piers Kennedy." "And she didn't want me to know?" "Well, there's obviously more to it than that." "This isn't news to you, is it?" "MI5... ..told me that she was on a watch list in the '80s." "You can take whatever you want from that." "Well, that's weird." "MI5 going to you directly." "In my experience, the Home Office always liaise between the Met and the security services." "Mine too." "But I got the feeling that this actually came straight from the MoD." "Cos they don't want Oleg Leontyev in the case until the Trident deal's sealed." "No, no, I mean right from the beginning, from the first time that Jane Hussey came to see me." "What's the MoD's interest?" "No idea." "Someone called me up and told me to look into Hugo Christie's death." "Who?" "I don't know." "Well, what did they say?" "They said not every conspiracy is a theory." "Just give it a couple of hours and then tell Grace that you've had a change of heart." "I don't like this game-playing." "Pisses me off." "Boyd!" "The old dog, St Bernard, might have been on to something." "Who was the focus of the original investigation?" "Ralph Palmer." "However, since the strikes were stepped up, hundreds of people have been killed, many of them civilians, including women and children." "According to a 2010 report, one in three people killed in US drone attacks in Pakistan is a civilian." "Yes, around there you want to say something about why it's happening." "You know, because US intelligence is so flawed, etc." "PHONE RINGS" "Ralph Palmer speaking." "Yes." "Ah, I see." "Yes." "Very well." "I will." "Bye." "The police want to see me." "I'll cancel Edinburgh." "No, no, no, no." "They're counting on you." "Ralph..." "I love you." "Yes, of course you do." "Of course you do." "Waterways Of The British Isles." "First and, I'm guessing, only edition, published in 1978." "It was reprinted four times, actually." "I edited it, I didn't write it." "With hindsight, maybe you should've excised the chapters of subterranean rivers of London." "Or at least the bit documenting the trajectory of the River Stroud." "Why did you start the Campaign Against Nuclear Weapons, Ralph?" "Well..." "Because I believe there are more intelligent, less dangerous ways to secure peace with your neighbour than by threatening him with annihilation." "You feel passionately about it?" "Very." "You feel passionately about Bonnie, too?" "You love her?" "Of course." "But you gave up both without a fight." "That's what you'd have us believe." "That's what you told the police back in 1983." "You said, "Shack up with a woman half your age" ""and it's a risk you run." ""I didn't hate Piers, just how he made me feel."" "A model of zen self-deprecation, aren't you, Ralph?" "Sorry." "Don't buy it." "Your intimate knowledge of the River Stroud gives us what they lacked in 1983, the foundation of a case." "I didn't kill him." "But maybe I can point you in the right direction." "A posh boy, slumming it, cashing in his war credentials for maximum gain." "A voice in my head said there was something off about Captain Kennedy's conversion to the cause and, if I could find out what, I'd win Bonnie back." "So, I started following them around." "GUNFIRE" "Of course, I knew we had a militant wing of sorts." "The same people who were up for accepting Soviet money, slinging bricks through MoD Plod windscreens and taking Cruisewatch up a gear." "Cruisewatch?" "The network of protesters who harassed and tracked cruise convoys wherever they went, right?" "Right." "Piers's change from soldier to pacifist had been too fast." "You think that Piers and his group were planning direct action?" "Well, that's what it looked like." "Sorry, I don't believe a word of it, do you?" "Not a word." "Yeah, the clustering's consistent with semi-automatic gunfire." "GUNFIRE" "Certainly adds ballast to the theory that MI5 did away with him." "Was there any forensic evidence to show he was tortured as well?" "Eve, can I...?" "Is there any chance of finding any bullets or spent casings?" "Well, after 30 years, it depends." "On what?" "I'm going to need a gradiometer, it's a metal detector used to detect ferromagnetic objects." "You got it, you got it." "Why didn't you mention any of this when Piers vanished?" "Because..." "I was pretty sure one of them was a woman." "Bonnie?" "I'd heard she was pregnant, and I didn't want to see the baby born in prison." "So she'd already thrown you out by then?" "Yes, yes." "I was living with my sister in Windsor." "While Piers was sleeping in your bed, and then you bring up his daughter as your own?" "Are you some kind of bloody saint?" "!" "No, no." "I was wrong." "A few months later, I asked Bonnie." "It wasn't her up here that night." "Well, we're going to have to speak to her, you know, on the off-chance that she's lying." "You can't." "Not today." "She's in Edinburgh." "She's giving a lecture on US drone attacks in Pakistan." "Mother says, any chance you could come down for Friday?" "A surprise guest's in town for one night only." "Not bloody Rufus Mortimer?" "The boy's done good out in Hong Kong." "Dad, I just..." "Lucy, please." "For my sake." "I'll get it in the neck." "All right, all right," "I'll just say that you had something you couldn't get out of." "Do you ever think about Hugo?" "Yes, of course I do." "You don't talk about him, Dad." "I suppose... ..I think it must've been even worse for you, losing a twin." "But do you ever think about how he actually died?" "Oh, come on." "Hugo was impulsive at the best of times." "And, by the end, he was hitting the bottle hard." "Except they found no alcohol in his blood stream." "Lucy..." "All right, Dad, sorry, I'll forget it." "Lucy, Lucy." "All work and no play year after year after year." "You need to get a life outside Westminster... before it's too late." "Sorry, Dad, but it is too late for grandchildren, bar a miracle or two." "I meant too late for you." "PHONE RINGS" "Sorry." "Christie." "The police have found what?" "!" "The hut Piers used for target practice is on the edge of Lord Christie's estate." "Have you spoken to him?" "Yeah, he's been nothing but co-operative." "Confirms Piers would've known about the hut from his days dating Lucy." "Bit of a risk going back." "Not really, it's a 900-acre estate." "Training on enemy territory, it's the ethos of guerrilla warfare." "He's big, you're small, that's what you exploit." "But training for what?" "Hmm?" "Grace, I think I've got an address for your friend Murray." "That's a photo of him from the marines." "Oh, it's not him." "Oh, OK." "Thanks for trying." "Sure." "Sarah?" "What made you change your mind?" "Doesn't matter, does it?" "It's not him." "KNOCKING ON DOOR" "Grace." "ECHOING GUNFIRE AND EXPLOSIONS" "ECHOING GUNFIRE CONTINUES" "MUFFLED SHOUTING" "GHOSTLY ECHOES" "DOORBELL RINGS" "Who the hell are you?" "Hello, Murray." "It's Grace." "Jesus Christ..." "No, not for me, thanks." "How did you find me?" "I think I deserve the first question, don't I?" "Yes, you do, yeah." "You want to know why I never got in touch?" "It wasn't cos..." "It wasn't cos I didn't want to." "I know." "What was it, then?" "Lots of things were going on." "It was a mad time." "The night you came to my flat, you had a gun in your bag." "Grace..." "I should've gone to the police but I didn't, which makes me some kind of accessory after..." "..whatever it was you did." "Did you kill Piers Kennedy?" "How can you ask me that?" "You were planning something, the two of you." "You were talking about it that night at the party." "You were worried, I could tell!" "I should be somewhere." "You should go." "You go." "What's happened to you over all these years?" "What are you so ashamed of?" "And why didn't you ever come back for me?" "Piers..." "Piers, he..." "He..." "What?" "The MoD Plods killed him." "The Ministry of Defence police." "Oh, God, I'm sorry..." "I can bloody prove it, right?" "!" "It was revenge." "Revenge for what?" "There's a videotape." "PHONE RINGS" "OK, Spence?" "You requested a background check on Murray Stuart." "The devil's in the details." "No form, but Stuart has a history of mental problems." "Only beat a GBH charge last year after a shrink vouched he had delusional disorder, exacerbated by heroin addiction." "Seems he'd been self-medicating for post-traumatic stress." "OK, thanks, Spence." "We've got to get her out of there." "No, no, no, no." "We'll follow her." "She'll be OK." "No!" "What else are we going to do?" "I mean, she's hiding something." "We've got to find out..." "GBH, Boyd." "He's dangerous." "She's a psychologist, she can handle him." "Except she doesn't know he's delusional!" "One day you're going to call heads and it's going to be tails." "Ooh." "What's that?" "Hmm?" "The river network is 19th century, and the buildings above it are 20th century." "Comparing these maps," "I think there's another way into the chamber where Piers was dumped." "Coming for it!" "Coming for me!" "Keep it safe!" "Shit!" "I'll draw their fire!" "Why did you lie to us about Murray Stuart?" "It's none of your business." "It's nothing to do with the case, then, apart from the fact that he served with Piers Kennedy?" "Yeah?" "No." "Lost." "He said the MoD police killed Piers, and this tape will prove it." "Armed police!" "Get down!" "Face the floor!" "You're on MoD property." "Who are you?" "Dr Eve Lockhart." "Are you alone?" "Yeah, yeah." "Hello?" "Hello?" "I'm Dr Eve Lockhart." "I work for the Forensic Science Service." "Hello?" "Hello?" "!" "Hello!" "Hello!" "Today you went to see a man, and everything suggests he was embroiled in a terrorist plot where somebody was killed." "Piers, Hugo." "We could be next." "I'm so scared." "I need some reassurances, Grace." "I need to know where you stand." "The Ministry of Defence Police killed Piers Kennedy out of revenge." "Murray, the worst thing you can do is run." "I just want to find out who killed Piers!" "Grace, if you're not happy being used as bait, just say so." "We can't guarantee your safety." "I gave you everything." "GUNSHOT" "Grace!" "Call an ambulance!" "Boyd!" "Subtitles by Red Bee Media Ltd" "E-mail subtitling@bbc.co.uk"