Late at night, a woman is kidnapped by an unknown assailant and taken back to his blood-spattered dungeon, where he turns her into a "flower of blood and flesh" through a series of dismemberment and evisceration.
Macau cops begin to suspect a man running a pork buns restaurant of murder, after tracing the origin of a case full of chopped up human remains that washed ashore, which leads them to him.
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.