Ousmane Diakité and François Monge are two cops with very different styles, backgrounds and careers. The unlikely pair are reunited once again for a new investigation that takes them across France. What seemed to be a simple drug deal turns out to be a much bigger criminal case wrapped in danger and unexpected comedy.

Franck just had the most crazy and wonderful idea for a company that would finally get him and his friends proper jobs. As Uber delivers food, Amazon daily items, Song Express will deliver songs. To your friends, or your loved one, or yourself, anywhere you want. It is brilliant, it is foolish, it could work… For Franck, Jean-Claude, Sophie and José, Song Express becomes something more than just a professional challenge: it is the dream of a lifetime.

Valentin D is a hot designer architect who claims to be an orphan because he is too ashamed to admit he is the son of working-class scrap metal merchants from the north of France.