At 42, David lives the life of an irresponsible adolescent. He coasts through life with minimal effort and maintains a complicated relationship with Valerie, a young policewoman. Just as she tells him she's pregnant, David's past resurfaces. Twenty years earlier, he began providing sperm to a fertility clinic in exchange for money. He discovers he's the father of 533 children, 142 of whom have filed a class action lawsuit to determine the identity of their biological father, known only by the pseudonym Starbuck.

Bruno Hamel is a thirty eight year old surgeon. He lives in Drummondville with his wife Sylvie, and their eight year-old daughter Jasmine. Like many happy people, he is leading an uneventful life until a beautiful fall afternoon, when his daughter is raped and murdered. From then on, the world of the Hamel family collapses. When the murderer is arrested, a terrible project germinates in Bruno's darkened mind. He plans to capture the "monster" and make him pay for his crime. The day the murderer appears in Court, Hamel, who had prepared his plan in great detail, kidnaps the monster and later sends the police a brief message stating that the rapist and murderer of his daughter was going to be tortured for 7 days and then executed. Once this task accomplished, he will then give himself up.