After escaping from an insane asylum, a medical student assumes the identity of a mysterious dead man, who appeared to be his doppelganger, and gets lured to a sinister island ruled by a mad scientist and his malformed men.
After going to prison for killing the boss of the Kanno gang, a gangster gets released early - only to find that his ex-gang has merged with the Kannos. But with bitter resentments lingering on both sides, bloodshed is bound to begin anew.
A Japanese woman is raped by her boyfriend day in day out.