A successful businessman goes to Italy to arrange for the return of his tycoon-father's body only to discover dad died with his mistress of long standing.

Pascal Gorriot, an escaped criminal, accidentally witnesses Lucille disposing of her second husband Andre's body at sea. Thirteen years later, Andre's cousin turns up at Lucille's villa with his Alastian dog. It's not long before creepy Colin, Andre's son, strangles the unfortunate hound and Falaise, Andre's daughter, stabs their unwelcome family member to death. Another unwanted visitor friend arrives and rapidly seduces Falais. Colin is jealous and warns the Don Juan about the dangers of being a male praying mantis and it's not long before Falaise decapitates him. Pascal, the ex-convict who witnessed the murder of Andre is the next intruder. He takes the family hostage and demands blackmail money, prompting them to do away with him in an acid bath. The police investigate and a chain of deception and murder is revealed...

Fourteen people of different ages - seven men and seven women - gather in a comfortable hotel by the sea to carry out an experiment inspired by the theories of an Austrian psychoanalyst. The creator - Professor Emilio Missiroli - wants to show that only a thousand breaking taboos' that stifle the sexual life can liberate man from his existential malaise. Every night, so, for a whole week, men and women of the group will couple through a draw, without giving any importance to their feelings, thus demonstrating that these can and should do without. Based on Wilhelm Reich's The Sexual Revolution.

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