Mou Tun-Fei was a Chinese filmmaker known for directing the infamous 1988 film Men Behind the Sun.
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.
Black Sun: The Nanking Massacre depicts the brutal events behind the Nanking Massacre committed by the Imperial Japanese army against the Chinese people during the Second Sino-Japanese War.
Determined to escape from the harsh regime of China to the freedom of Hong Kong, three youths are captured by Mr. Hok, a sadistic human smuggler who subjects them to an unrelenting assault of degradation. Pushed to the limits of human endurance, the prisoners must fight for their lives in an unforgettable, action-packed climax.