In the middle of the night, someone brings Ivan's body home to his wife and his sad-faced, jug-eared son. Through flashbacks, the film discloses the relationships among Ivan and his brother Alex, a cop with a cleanliness fetish; siblings Juliette and Jimmy, Ivan's partners in a seedy nightclub; the love triangle of Alex, Juliette, and Marie, a professor of philosophy; and of Alex and his nephew, Ivan's dour, stoic son. Ivan's death changes every relationship.
In 1982, André Bamberski learns about the death of his 14 year-old daughter, Kalinka, while she was on vacation with her mother and stepfather in Germany. Convinced that Kalinka’s death was not an accident, Bamberski begins to investigate. A botched autopsy report raises his suspicions and leads him to accuse Kalinka’s stepfather, Dr Dieter Krombach, as the murderer.
Unable to indict Krombach in Germany, Bamberski attempts to take the trial to France, where he will dedicate his life to Kalinka’s justice and the imprisonment of Krombach.
A washed-up Marseilles cop (Auteuil) earns a chance at redemption by protecting a woman from the man who killed her parents as he is about to be released from prison.
A man receives a mysterious e-mail appearing to be from his wife, who was murdered years earlier. As he frantically tries to find out whether she's alive, he finds himself being implicated in her death.
Between 1978 and 1979, the inhabitants of the Oise are in fear of a maniac who kills several hitchhikers and escape the police. He was then dubbed "the killer of the Oise" is actually a shy young policeman who will investigate his own murder, only to lose control of the situation.
Paris, 1830. In the heart of the town, Vidocq, a famous detective, disappears as he fights the Alchemist, an assassin that he has been pursuing for a few months. His young biographer, Etienne Boisset, decides to avenge Vidocq's death and takes the investigation on...
Bastien, an ambitious young production assistant, catches the attention of Jean-Louis, a producer of high regard, and is granted a shot at his own television show.
When police is about to apprehend a famous gang of bank robbers, an elite sniper opens fire from a roof, thus facilitating the flee of his accomplices. However, one of them is seriously injured, which compromises the plans of the thieves.
Eight women gather to celebrate Christmas in a snowbound cottage, only to find the family patriarch dead with a knife in his back. Trapped in the house, every woman becomes a suspect, each having her own motive and secret.
Claude Massoulier is murdered while hunting at the same place as Julien Vercel, an estate agent who knew him and whose fingerprints are found on Massoulier's car. As the police discover that Marie-Christine Vercel, Julien's wife, was Massoulier's mistress, Julien is the prime suspect. But his secretary, Barbara Becker, while not quite convinced he is innocent, defends him and leads her private investigations.
Fred is a gambler and deep in debt. He owes crime boss Victor a lot of money and the time to pay has come. He decides to take a massive risk to refund his debts and agrees to kill a man. Fred knows he has to pay his debt and that the only way to do it is to carry out the hit arranged by Victor.