Frank and Bernard share the same apartment and both work in the same tourist agency. Bernard drives the coach through the streets of Paris and Frank is the guide. The driver longs for a family life but he is not lucky with girls. So he asks his friend, who is a womanizer, to help him find at last his better half. Frank winds up in a hospital and falls for the shrink, Nina. Faithful to his pal, Frank comes to his rescue but he falls in love with Nina too.

Tony and Nanar, two teenagers who met in reform school, are part of a gang of idle, penniless youngsters from the Paris suburbs. Together, they go to dances and plan mischief. The muse of the gang, B.B. La Brune, organizes leisure activities when she's not up to no good. Unemployed and penniless, they all dream of consumption and possession. Until the day a fight turns ugly: Tony, trying to reason with Nanar, pulls the trigger.

A monk for thirty-seven years, Brother Gregory could not resist the temptation. Leaving the monastery for the first time to fulfill his duty as a voter, he catches up with pastis and women.

Lyons, France. Michel Descombes is a watchmaker who lives alone with his teenage son Bernard. When the police visit and informs him that Bernard killed a man and is on the run with a girl, Michel realizes that he knew far less about his son than he thought.