Men Behind the Sun (1988)

Name: Men Behind the Sun
Genre: War, History, Horror
Released: 1988-12-01
Duration: 105 min
Cast: Gang Wang, Wang Runshen, Hsu Gou, Tie Long Jin, Mei Zhaohua

Awful, bloody, sick and… true!

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.