Max, a ruthless fifty-year-old hitman, discovers he has a problem: he now faints at the drop of blood. With his future in the profession in jeopardy, he's going to have to retrain... But not so simple when his only professional skill is to kill people... They are helped by a couple of young neighbors, Karim and Stéphanie, who do not imagine for a moment who they are dealing with... Max becomes attached, in spite of himself, to the young couple, until his past catches up with him.

When Marina crosses the door of the police station, it's because she has finally found the courage to file a complaint against her ex-partner for rape.

Simon Coleman is a Parisian cop, specialist in undercover missions. If he sometimes plays his life on a pile or face, Simon never gets away from his smile, and whatever pressure he faces. That makes him cool for some... and completely unconscious for others. To complete this immersion career, Simon has preferred a life without attachments; no lasting relationships, let alone children. Until that morning, when he turned on his cell phone after a six-week mission under another identity, the messages chained up... when he learned that his sister died in an accident with her husband.

Christophe Perrin, a renowned oyster farmer in Arcachon Bay, is the victim of a murder attempt. His three daughters rush to his bedside, where he lies wounded and unable to manage L'Héritage, the family oyster farm.