M4uFree Search : tun fei mou

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

Illegal immigrants from mainland China are smuggled into Hong Kong They are captured by a gang, then raped, tortured, and murdered

A young kung fu student is thrown into jail on a false charge He shares a cell with a shaggy convict, who is repeated tortured by the magistrate to reveal the deadly secret