When Eléonore returns, Falco is forced to pick up the past. An opponent of the police kidnaps an agent: he is looking for vengeance, and leaves no doubt that he is prepared to commit violence. A race against the clock begins for Falco and Romain.
Audrey is not the only victim. Falco must stop the killer before he strikes again. Meanwhile the mysterious Maxime tries to make a friendship with him.
Falco's coma puts his family and colleagues to the test. A woman disappears and leaves only a chain of a child. Maxime joins the team and amazes everyone with his methods.
Falco is undergoing a lifesaving operation. In the investigation into the death of a woman who wanted to make a new start, Eva appreciates Maxime's unorthodox way of working. Romain still has his doubt.
Anaïs and Nadia, two girls of sixteen, disappear during a secret night out. Nadia's mother receives a message and shortly afterwards it appears from surveillance images that they are in a van.
Three people are shot in a park in Paris. The first tracks clearly point in the direction of a soldier. There is an arrest, but then a second attack soon follows.