Hei Tai Yang 731

Year: 1988

Aka: Men Behind the Sun

Director: Tun Fei Mou

Cast: Gang Wang, Wang Runshen, Hsu Gou, Tie Long Jin

IMDb: tt0093170

Theme / prize: thema How far can too far go

Japanese troops round up Chinese and Russian prisoners of war and take them to unit 731, where they're horribly tortured and experimented on to test new biological weapons.