Men Behind the Sun 2: Laboratory of the Devil (1992)
Original title: 黑太陽731續集之殺人工廠
Men Behind the Sun 2: Laboratory of the Devil is a 1992 Chinese-language war movie directed by Godfrey Ho, with a running time of 1h 36m. It stars Chu Kong, Yuen-Ching Leung and Wan Ying Ying.
In 1935, Japan's Unit 731 conducts inhumane experiments. A doctor tries to free prisoners, including his fiancée, from the camp while witnessing atrocities.