"Maine-Ocean" is the name of a train that rides from Paris to Saint-Nazaire (near the ocean). In that train, Dejanira, a Brazilian, has a brush with the two ticket inspectors. Mimi, another traveler and also a lawyer, helps her. The four of them will meet together later and live a few shifted adventures with a strange-speaking sailor (Mimi's client).

Amandine is twenty years old, the most beautiful buttocks in Paris, and unfortunately a very ugly nose, which forces her in her profession of model, to pose only from behind. Trying in vain to save money that her sister Joëlle constantly borrows from her, she will finally be reimbursed and will thus be able to afford aesthetic surgery and become a lovely cover girl...

The stage director of the play L’œuf de Pâquesis given the importante Molière award. Taking this reward for a bad joke, he thinks that a conspiracy mounts against him and decides to rewrite the play, transforming it into Molière’s La critique de l’École des femmes.

Gilles, who operates a money losing garage, teams up with his friends Max, who operates a scrap yard, and lawyer Xavier to open a brothel catering to women. They get the idea from Gilles' secretary Irma, a former prostitute. They are assisted in the implementation by Max's wife Juliette and Sabine who is mad for Gilles. Unfortunately Gilles has fallen for Florence the daughter of the conservative Prime Minister and his wife. When the Prime Minister tries to shut down the brothel Gilles decides to stand against him in the election.

Elizabeth and her daughter Cecile spend their holidays at a lakeside resort in the French mountains. Elizabeth falls in love with a strange Italian, Giovanni, while young Cecile is courted by an apprentice cook. It seems that mother and daughter are drifting apart from each other, but then their holidays are over.

The scene is the restless Paris of the interwar years where an attractive and ambitious woman successfully makes her way in a world previously reserved for men: that of high finance. Originating from a humble background, she quickly becomes popular with small savers by offering them outstanding interest rates. Extremely popular, she makes no secret of her taste for the good things in life and her homosexual affairs. They will cost her dearly...

Thia and Murelli, who live from car stunt shows, make ends meet by carrying out small burglaries.

Tony and Nanar, two teenagers who met in reform school, are part of a gang of idle, penniless youngsters from the Paris suburbs. Together, they go to dances and plan mischief. The muse of the gang, B.B. La Brune, organizes leisure activities when she's not up to no good. Unemployed and penniless, they all dream of consumption and possession. Until the day a fight turns ugly: Tony, trying to reason with Nanar, pulls the trigger.