Coustaud and Milka have to organize a memorable party to bury the boy life of their friend Tom. They go into their usual cafe, where all the guests that night give their opinion of the marriage, its setbacks and its amenities.

Lucas, 11 years old, disappears one morning from the family home. His departure plunges Marion and Alexis, his recently separated parents, into unbearable anxiety. Their child is absolutely not equipped to face the outside world alone; Lucas is autistic and particularly vulnerable. For Marion and Alexis, it's a race against time to find their son, forcing them to delve into their past.

Raphaël, a draughtsman, and Margot, a prima ballerina, love each other passionately. But they learn that Margot suffers from an incurable disease.

One evening, Etienne, a police officer from the BAC, and Christian, his teammate, witness the assault of a young girl. But the killer manages to escape, seriously injuring Christian. Shortly after, Etienne discovers, on the one hand, that Angèle, the woman who left him seven months earlier, is about to give birth and that his new boss, Alex Le Guen, is none other than the man he spent the night with after a drunken evening.

A former history teacher-turned-municipal librarian tries to help local young people.

Mathilde, a young dancer with a promising career ahead of her, receives a letter from a "chain letter" as she is about to leave on a tour. On the way she reads to her friend Sophie all the disasters that supposedly should befall those who break the chain by not sending someone else the letter. Mathilde finds this funny and isn't worried at all. But on the first stop of her tour, the young dancer falls victim to a series of strange accidents.