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.

While on a train to Rome, Léon muses about his love life after leaving his wife.

Delphine and Solange are two sisters living in Rochefort. Delphine is a dancing teacher and Solange composes and teaches the piano. Maxence is a poetand a painter. He is doing his military service. Simon owns a music shop, he left Paris one month ago to come back where he fell in love 10 years ago. They are looking for love, looking for each other, without being aware that their ideal partner is very close...

Determined to assert his paternal rights, Quentin leaves his small village on the Swiss border to go to Lyon to look for his daughter, now a hairdresser, who, busy with her work, hasn't been back to the village for two years. In a few days, it will be Denise's birthday, the youngest of his daughters, and, urged on by his wife, he sets off, determined to bring the prodigal son back to the family celebration. But Denise is now living off her charms.