In Castallet, a village in Provence, cats are swarming and disturbing the peace and quiet of the inhabitants. The municipality decides to get rid of these invasive felines, but a group of children nicknamed "la bande à Bobo" (Bobo's gang) comes to their defense.

Marianne, whose past is not beyond reproach, runs a real estate agency, to whose customers Mr. Donzin grants high-interest mortgages. Donzin provides high-interest mortgages. Mr. Donzin has just executed a charming victim who, unable to repay her loan after her husband's death, has had her business confiscated. Marianne is dreaming of a vigilante when her ex-husband, Alfredo, pardoned from prison, reappears. When he finds out, he sees in Mr. Donzin a "pigeon" worthy of attention.

A poor wretch dreams of becoming a traffic warden.

A young garage owner, Henri, whose business is not going well, fixes the lovely Gloria's car on the road. She suggests he let part of his garage to her friends.