Christine (Anny Duperey) is distraught when her adolescent son runs away. When the cops are no help, she contacts two former lovers -- François (Pierre Richard), a suicidal teacher, and Jean Lucas (Gérard Depardieu), a burly journalist working on a story about the Mafia. She then convinces them to help find her boy by claiming that she believes one of the men is her son's father. Although they make a poor team, the two set off on a quest to find their purported son.