The series follows the adventures of lighthearted Jean-Paul Moulin, a police Commissaire, and his team as they solve crimes.

A cop investigates whether the man convicted of murdering his daughter is really guilty.

While on the move, Denis's patrol is ambushed. Finding himself alone, Denis steps on a mine and is left stranded in the middle of a barren desert. If he moves, Denis risks death: psychologically shattered, he must try to physically resist a situation from which he may be helpless alone.

Malek, in his forties, single, has just moved to Montmartre and will soon welcome his nephew Ryiad, who has just arrived from Algeria, into his home. Together they discover Barbès, the neighborhood of the Algerian community, very lively, despite the current health crisis. His meetings with local figures will allow Malek to find a part of himself that he had buried, and to reconcile with his origins.

The chaotic sentimental education of girls and boys of the climatic home "Les Poussifs".