A psychotic small-time criminal realizes that the everyday robberies, rapes and murders he commits aren't profitable enough, so he figures to hit the big time by kidnapping the daughter of a rich man.

Monika is young, beautiful and a virgin. She is only 16 years old, and, beside getting the attention of all her classmates, she also attracts older men. She has a relationship with a boy, Leo, but she doesn't know that he uses to pimp the girls he seduces to rich businessmen. One of Leo's client befriends Monika and becomes so obsessed that he pays Leo to get her. But Monika turns her attention to her art professor, unknowing that he too has his secrets.

An Italian prison official's wife is kidnapped, and the kidnappers demand that a notorious prisoner be released in order for the man to get his wife back. He gets the man released - but then kidnaps him himself, in order to ensure that the man's colleagues don't kill his wife. Enraged, the gang sets out to free their compatriot and kill the man who took him.

A detective is assigned to head a manhunt for four violent bank robbers.