Mathias, aboard a ship with his wife, sees a boy with a striking resemblance to himself and is called - Mathias. He then tracks him to a town north of France to discover that the boys parents are exactly like his parents, only to know that his life is payed over again just 30 years post. He then chooses to be the guest in his own life, while he has a life to live at hand.

A group of friends in their thirties meet for a weekend in a mountain chalet for what will be a sort of review of an era in their lives and their relationships.

Jean, a little embittered and insupportable office worker, is fired for his heinous behavior. Fifty, single and revanchist, he has no friends and finds himself face to face with no future. He then meets Antoine, a young magician adept at meditation. Intrigued by this strange character who responds to his aggressiveness with a resolutely optimistic vision of life, Jean decides to accompany him to La Baule. On the way, despite some unforeseen and surprising encounters, the duo will get to know each other.

After raising her daughter, one would think that Julie's life was rather full. However, she recently got an offer from the French consul to a mission in Pondicherry, India to teach her skills to Indians. She can only do this if she gets her high-school diploma, something she neglected to do earlier. The idea of this new post motivates her to rectify her youthful omission, and she goes back to school in Montparnasse. Just before classes are to start, her current boyfriend's condescending ways prove too much for her, and she breaks up with him, reacting to that by getting drunk. Thus, when she has to take the subway to school on the first day, being unfamiliar with the route and somewhat the worse for wear, she gets lost. Fortunately, she meets an elderly man, a retired musician for the Paris Opera, who is headed for the very same destination. The two form a relationship of mutual encouragement and support.

After the discovery of the bodies of two women raped and murdered, Lieutenant Sarlat, is assigned to the case. During your research you will find a family linked to black magic, and two gypsy women, Ana and her mother Marina, without having any connection that may be the key to the whole mystery. Sarlat will be responsible for discovering the connection between a serial murderer, and this dark and complex family.

Esther, a Turkish emigrant, was naturalized French and now lives in Paris. Only her daughter Sarah has followed her. The child grows up in a cold boarding school, far from her mother, whose motives and stubbornness she does not understand, especially since Esther no longer visits or writes to her. Sarah thinks she has been abandoned. In reality, Esther, ill from so many hardships, does not want to reveal her condition to her daughter.

Following a bet with his friends, Antoine steals a jacket. The life of his parents will be turned upside down.

Marie, a pretty young woman, wanders through the aisles of a futuristic supermarket where everything, from the miracle pill to the virtual man, is for sale. Tonight, she's having a birthday party. She's invited a few old friends and their virtual companions. Everyone is young, beautiful and meek.