Franck is a firefighter in Paris. He saves people. He lives at the station with his wife, who is about to have twins. He’s happy. During a call out to a fire, he puts himself in danger, to save his men. He’s going to have to learn to live again and accept to be the one being saved, this time.
Louise, a widow with two children, almost crushes a stranger with her car. She takes care of him, even if he's not really wounded. It turns out that he has mental disorders and that they can help each other much more than they thought.
In Paris, many citizens go to the precinct after the doors of their apartments have been sprayed with a 4 and the letters "clt". When a dweller is found mysteriously dead in his apartment, Detective Jean-Baptiste Adamsberg and his partner Danglard investigate...
