During a patrol, Julie and Simon, two police constables, injure a wealthy man who pointlessly killed their partner. This wealthy man in question turns out to be the son of a politician. This is why the two police constables are accused of brutality by the brass. Abandoned by their superiors, the two leading characters will lead an investigation on the drug that caused the politician's son to be out of his mind.

Garlat, a former cop, agrees with Voltaire's maxim, but when confronted with evidence manipulation in one of his former investigations, he is forced to ask himself other questions. Is memory selective? Did he really fabricate evidence? So who is he? And is this man in prison guilty? With his son, Nicolas, a cop like him, Garlat returns to Paris and takes up the investigation again.

Remedios Buendía defends her homeland and will fight for it. This fateful day of 1945, a group of maquis take the post where she tries on her wedding dress. She will show how far she can go defending her values.

Florence Varthy is found dead in her garage. Witnesses to her last few days are questioned to discover who wanted her dead. How did this woman, only daughter of well-known, brash businessman Jacques Varthy, end up like this?

Claire is a midwife and has devoted her life to others. At a moment when she is preoccupied by the imminent closure of the maternity clinic where she works, her life is further turned upside down when Béatrice, her father's former mistress, turns up on the scene. Béatrice is a capricious and selfish woman, Claire's exact opposite.

Sam, a freelance journalist, decides to investigate the growing phenomenon of disaffected youth joining extremist groups. He infiltrates a group of four young people who have been tasked with the creation of a jihadist cell and whose mission is to destabilise the city centre of Paris.