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"A WORD OF WARNING! Please don't reveal the ending of this picture or your friends will kill you - IF THEY DON'T, I WILL!". The story centers around a murderous scheme to collect a rich inheritance. The object of murder is Miriam Webster, who is to share in the inheritance with her half brother Warren, who lives with his childhood guardian Helga in the mansion where Warren and Mariam grew up. Confined to a wheelchair after recently suffering a stroke, Helga is cared for by her nurse Emily, a strange young woman who has formed a close bond with Warren.
Movie rating: 6.8 / 10 (3626)
Directed by: Robb White - William Castle
Writer credits: Robb White
Cast: Glenn Corbett - Patricia Breslin - Eugenie Leontovich - Alan Bunce - Richard Rust
AKA: Den mystiske knivstikker
