In the middle of a tree-nursery lies the bloodied body of Alain Artois. At his side, Guillaume Paillet, his best friend, who flees on a motorcycle. During his escape, he takes a motorist hostage. Everything seems to cast doubt on Paillet. But the case is far from being that simple...
The body of a young man is found in a small street in Nantes. The first fingerprints allow a suspect to be identified: Laura Capponi, who died 6 years earlier. How can you find a person thought dead for many years and with an unknown new identity...
Pascal Certeux escapes from the psychiatric facility where he was detained for brutally murdering five women. He wants to visit Marie Swadziack, the old lady who received him as a teenager, the only one not to have doubted him at his trial. But Marie, who was sick, has just died...
The body of Lieutenant Mangin is found in wasteland, riddled with bullets. After the gunshots, two teenagers are seen running away. One is the runaway son of a well-to-do family; the other a small dealer from the neighbouring estate.
Jérémy Berthier is found dead in his Lille apartment. The first elements point to Axel Gallien, who has a long criminal record. The former jailbird seems the ideal culprit. But why would he regress now that he leads a quiet life in the Paris suburbs with his wife and stepson?
David Guimard, a wealthy corporate lawyer, is found dead. The main suspect is his piano teacher, Muriel Carnot, who was seen by Guimard's concierge in the building's lobby on the day of the murder, and who has since disappeared. But why would this simple woman have killed her pupil?