Two sisters suspect foul play after the mysterious disappearance of their mother in the mountains.

Pierre-Jean Morin, known as PJ, is a local police officer who falls in love with Lucille, the new recruit of his brigade. Often bullied by her colleagues, the young woman thinks of resigning. PJ will then do everything to keep her by his side...

Former cop Michael Lombardi is accused of murder, and only his brother, Roman, is convinced of his innocence. Now the suspicion is moving to Roman when his superiors make an important discovery.

Laurence Renoux, chef du service des maladies tropicales et infectieuses dans un hôpital parisien, est inquiète. Depuis quelques jours, elle est confrontée à une épidémie de source inconnue dont les symptômes s'apparentent à une méningite fulgurante, et qu'elle ne parvient pas à endiguer.

After the death of his mother, Elisa (Claire Borotra) is responsible for custody of her sister Audrey (Penelope Leveque), a troubled teen and something he hardly knows. Following the last will of her mother, both go to Mont Saint Michel, where the two grew up, to spread his ashes. The second night of stay, and after a flood, Audrey disappears while the mayor's daughter, which suggests a voluntary escape, but Elisa does not think so, so it will not stop until its trace sister.

Istambul, 1967. Two women meet at Avrenos, a tavern in the old city. Nouchi, the brunette, is mourning the death of Bernard de Jonsac, an employee of the French Embassy who recently died. It is Lélia, the blonde, who asked her to come. She wants to understand the ties that bound them both to Jonsac, to understand the strange couple that this desperate dandy formed with Nouchi, the ex-Bulgarian bar girl. Lélia, the middle-class woman from Istanbul, wants to understand at last, ten years after the tragedy that has left her confined to a wheelchair for life...

Marie returns to live in La Rochelle, the city of her childhood, with her husband Marc, a policeman, and meets Nadia. The two young women scour the city's stores, looking for a red sofa. They soon discover one in the store of Maxime, a second-hand dealer. A few days later, Nadia seems tormented when Marie mentions the sofa. During a visit, Marie discovers Nadia's lifeless body.

In Belle Epoque Paris, Georges Duroy, a handsome, ambitious but penniless young man, reunites with his friend Forestier, editor-in-chief of a major financial newspaper. Forestier manages to find him a position at the newspaper. With his friend's support, Georges does everything he can to climb the social ladder. He relies mainly on his undeniable charm to win the favor of influential women who can introduce him to the wealthy circles he covets. Georges benefits in particular from the support of Madeleine, the wife of the newspaper's editor-in-chief. His numerous conquests in high society soon earn him the nickname "Bel Ami."