A tired and alcoholic police investigator has lost his wife to a hotel owner, and former pimp, but befriends a young woman which isn't at all who she claims to be.

After many years of rambling across Europe the aging Giacomo Casanova is impoverished. He wants to return to the Republic of Venice but he doesn't dare going there directly because he was a fugitive when he left. While he tries to find a way to get a pardon he meets a young lady named Marcelina. The more he shows his affection, the more ostentatiously she rejects him. Even so he doesn't give up on her because her lover Lorenzo has grave gaming debts. In return for the required money Lorenzo tells Casanova about a looming secret rendezvous with Marcelina. Moreover he lets Casanova take his place. Undercover of the night Casanova finally seduces her. Lorenzo later feels his honor was besmirched and demands satisfaction. Casanova kills him in a duel and then goes home to Venice.

The action takes place in a typical French town in the early sixties, at the end of the Algerian war. In a fit of criminal madness, a married, affluent and respected town-citizen named Gregoire Duval kills a young woman who spurns his advances. As no one witnesses him committing this crime, he chooses to remain silent while the girl's boyfriend, a young Algerian farm worker, is wrongly convicted. In a strange twist of fate, the killer becomes one of the jurors of the trial and suddenly does everything in his power to defend the wrongly accused young man.

In a Jesuit secondary school , the headmaster imposes an iron discipline on the unfortunate students. Enter Father Godard who believes in Christian love.

Marie Madeleine Dreux, Marquise of Brinvilliers, was executed in 1676 for poisoning. Manipulated by her lover and having kept the aftereffects of her childhood, she does not hesitate to poison her father and two brothers to recover their inheritance.

A tired and alcoholic police investigator has lost his wife to a hotel owner, and former pimp, but befriends a young woman which isn't at all who she claims to be.