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In one of the city parks in Paris, one boy hits another boy on the head with a baton, resulting in two broken teeth. The family of the offender (Alain and Annette) comes to the family of the victim (Michel and Veronique) to apologise and solve the problem. The playwright carefully portrays each of the four characters.

Alain is a lawyer who talks on his mobile phone all the time, which annoys everyone; he is a cynic and has little interest in the fate of his son. Annette is a real estate specialist, a very fake, flattering woman who ultimately turns out to be weak and unhappy. Michel is a hardware dealer; he is no less cynical than Alain, but he tries to hide it behind a veneer of grace and pragmatism. Veronique is a librarian, a writer, professes humanistic values, is writing a book about the conflict in Darfur, and is interested in painting.

The conversation between the parents comes to a standstill. After eating a fruit pie and getting too nervous, Annette starts vomiting. This becomes the starting point for the descent of the characters' mashkars. Each of them reveals themselves to be different from what they want to appear. Michel threw his pet hamster out into the street, and it probably died. Veronique is a captive of things, more interested in valuable albums with reproductions than Annette, who throws up after the pie. In the end, all words are spoken, Michel is called a «murderer», Veronique is called «cheap», and their son turns out to be a homosexual, which is why he got a baton in the teeth.