The film is a graphic depiction of the war atrocities committed by the Japanese at Unit 731, the secret biological weapons experimentation unit of the Imperial Japanese Army during World War II. The film details the various cruel medical experiments Unit 731 inflicted upon the Chinese and Soviet prisoners at the tail-end of the war.

Movie rating: 6.1 / 10 (6876)

Directed by: Tun Fei Mou - Mei Liu - Wen Yuan Mou - Dun Jing Teng

Writer credits: Mei Liu - Wen Yuan Mou

Cast: Hsu Gou - Gang Wang - Jianxin Chen - Tie Long Jin - Linjie Hao

AKA: Men Behind the Sun, Black Sun 731, Hei tai yang 731, Oddział 731, Oddział 731, Hei tai yang 731, Hak taai yeung 731, Squadron 731

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