An amateur detective helps a hotel owner to find her younger sister.

When the boss' unlucky daughter is missing in South America, Campana is sent to watch the boss' most unlucky employee who is sent as a private detective in hopes he can duplicate the daughter's mistakes.

Aldo and Marco are twins. Marco, a priest by trade, has always been an object of pride for his mother, while Aldo has already spent six periods in prison. Always on the lookout for money and pretty girls, he lets himself be hijacked by crazy, often dishonest operations, which fail most of the time. One day, he is forced to flee to Tunisia, dressed as a priest and posing as Marco. There he meets up with Prosper, a childhood friend, whom he lures into his race for millions and beautiful summer girls. Marco, delegated by the Paris police, arrives in Tunisia to limit the damage, but only makes it worse. Once again, Aldo has to disappear into the wilderness for a while and make himself forgotten...

Rémi Chauveau, ten years old, lives in a broken home. He first experiences an austere boarding school and then an authoritarian and abusive nanny. Teenager, he works as butcher in Paris. On Saturday, he made “silly little things” that sometimes lead to prison.