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 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 Empire of Japan at Unit 731, the secret biological weapons experimentation unit of the Imperial Japanese Army during the Second Sino-Japanese War. It details the various cruel medical experiments Unit 731 conducted on Chinese and ethnic Russian prisoners towards the end of the war.
Plot
The film opens with the quote "Friendship is friendship; history is history."