After leaving boxing, Stéphane is employed as a bodyguard for a politician. One night, Stéphane and his friend Pierre-Marie confront some belligerent billposters. Pierre-Marie is murdered. For Stéphane, the anger is so strong that he pursues the murderer, who dies accidentally. Accused of the crime, Stéphane seeks help from a journalist, who will help him get his side of the story heard.