A biker's brother is killed while investigating the kidnapping of a young boy, the byproduct of a war between two crime families. The biker vows to get revenge by finding the kidnapped boy and destroying the two families.

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.

Matteo is a communist intellectual, the son of a wealthy bourgeois, who found himself blind from an eye after the war. One day in the streets of Rome he meets Amelia, a child suffocated by the bourgeois environment.

Vincenzo 'hunchback' plans a robbery on a armored police van with his gang. Once the job is done, his gang try to kill him and absconds with the loot. Vincenzo hides in the sewers before looking up his friend Monezza who the police later interrogate for his involvement with vincenzo. Meanwhile, Vincenzo is getting revenge on his gang by killing them off one at the time in his various brutal ways.