Gena will soon be 16. But today she has to send a birthday card to her father. What can she possibly write to him? She doesn't know him. Louis received his card from his daughter, and she got the age wrong. What does it matter? Everyone abandoned him ages ago. But Gena decides to go looking for Louis. She rushes to a city she's never been to. She finds the street and recognizes a guy busily running back and forth. What the hell is he doing? At that moment, her heart starts racing.

George, host of a television show focusing on literature, receives videos shot on the sly that feature his family, along with disturbing drawings that are difficult to interpret. He has no idea who has made and sent him the videos. Progressively, the contents of the videos become more personal, indicating that the sender has known George for a long time.

A series of events unfold like a chain reaction, all stemming from a minor event that brings the film's five characters together. Set in Paris, France, Anne is an actress whose boyfriend Georges photographs the war in Kosovo. Georges' brother, Jean, is looking for the entry code to Georges' apartment. These characters' lives interconnect with a Romanian immigrant and a deaf teacher.

Vazquez, 60, owns a small French publishing house. His mother, a Spanish refugee, raised him in the memory of a father, hero of the resistance under Franquism. His daughter Lauriane, 30, has a complicated love life, but still lives with her father.

The kidnapping and murder of a young woman on France’s Mediterranean coast reawakens horrors of the past. Three years ago, criminologist Ariane’s cousin was killed and her mother, homicide inspector Sandra, was suspected to be involved in the case. When Sandra’s former boss invites her to help out on the new case, mother and daughter, who had a visceral falling-out over Elodie’s murder, have to join forces.

Jean-Pierre is a brilliant surgeon. The problems of his nearest and dearest don't interest him. But when he discovers that he too has a serious heart disease which needs operating on, Jean-Pierre finds out what it is to be a patient.