Steph, Jean-Claude and Jacques work in a Parisian art shop, but they mainly work in the field of eroticism, which they conceive as a wide-ranging field of exercises and experiments.

Young provincial Charles arrives in Paris to stay with his cousin Paul while studying law. Paul is a decadent, bohemian pleasure-seeker who shows the meek, diligent Charles the thrills of city life. When Charles falls for Florence, one of Paul's acquaintances, relationships begin to shift.

Sénéchal, an actor touring the provinces with the "Tournées Carlini" does not meet the success he thinks he deserves. One night in Dreux, he finds himself without his luggage and dressed up as a Foreign Legion officer, he is invited to a party thrown by a colonel. He creates a sensation there and does not leave the colonel's wife ... indifferent! Back in Paris, Sénéchal goes through a similar experience. This time around, wearing tuxedo and top hat, he gets mistaken for a diplomat and charms the guests of a wedding party. Arrested by the police, he chooses to do without an attorney at his trial and his brilliant eloquence has him acquitted. A question remains unanswered though : will all those people who give an ovation in real life ever go to see him on stage ?

Claire is a chic young Parisian woman married to a somewhat older husband, Jean As the story opens, she leaves her husband playing baroque music at the piano, telling him she is off to see her sister, Solange. In reality she meets her lover, Claude at his apartment; After some idle chatter and love-making he tells her a story of the shriveled heads that the Jivaro Indians used to give their lovers as tokens of affection but, as she shivers in disgust, he gives her a mink instead. How will they hide it from her husband?

Reported missing in 1940, Jacques Ledru comes back to Strasbourg as Martin Schmidt. He tracks down his wife Genevieve, but she's remarried and has taken the head of his shipping company. She and her husband will do anything to get rid of Jacques and keep his company.

Appointed public prosecutor in a small provincial town, Gérard Latour befriends Delanglade, whose young wife becomes his mistress. Shortly afterwards, a fire ravages Delanglade's factory. During the ensuing investigation, the Public Prosecutor discovers the troubled past of the industrialist and his front man, Jacques Perthuis, an ex-convict. They themselves set fire to the factory to collect the insurance premium. Gérard Latour, suspecting his mistress of complicity in her husband's machinations, leaves her after a stormy argument.