Mércedès, an actress from Paris attempts to break off a difficult relationship with the jealous and possessive stalker Johnny. She meets newspaper writer Pierre and goes with him for an afternoon fling. Before the sweat even dries, she finds herself hopelessly in love with him. But soon after their affair begins, he is called off on a business trip leaving the suddenly distraught Mércedès alone. Though preparing for a new play, she is unable to concentrate and barely able to function. Mércedès quits the production, locks herself in Pierre's apartment and quietly begins falling apart, collapsing into a bleak, reclusive madness until his return.

25 year-old Hippo doesn't have a job, doesn't study either but lives from the money his younger brother earns with dealing and from occasional Poker winnings.

Franck and Florence share not only their lives, but also their practice. She is a psychologist, beautiful and cheerful. He is a psychoanalyst, grumpy and jealous. His wife's frequent absences fuel this jealousy. Florence is, however, a model wife, but she prefers that her husband believe her to be unfaithful rather than learn the truth

Antoine a Union representative works in a financially troubled factory. He's not the sharpest tool in the box but he has a big heart and when he and his wife win the jackpot of the national lottery. Antoine will invest his gain to try and safe the factory.