On the docks of Venice, the bodies of a married couple, Flavia and Fabio, are discovered. He was stabbed to death with a huge pair of scissors and she drowned. Marzia, Flavia's best friend, is questioned by the police, setting in motion a chain of murders. A prostitute is stabbed in the crotch; Marzia's lover is shot in the kneecaps before being doused in gasoline and set on fire; and Marzia herself is tied to a kitchen table and dismembered before being stuffed in a fridge. Meanwhile, memories indicate that Fabio derived perverted pleasure from coercing his young wife into horrible sexual activities...