Men Behind the Sun
Men Behind the Sun (, literally Black Sun: 731, also sometimes called Man Behind the Sun) is a 1988 Hong Kong historical exploitation horror film directed by T. F. Mou, and written by Mei Liu, Wen Yuan Mou and Dun Jing Teng. The film is a graphic depiction of the war atrocities committed by the Imperial Japanese Army at Unit 731, the secret biological weapons experimentation unit of the Imperial Japanese Army during World War II. It details the various cruel medical experiments Unit 731 conducted on Chinese and Siberian prisoners towards the end of the war.
Plot
The film opens with the passage "Friendship is friendship; history is history."