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.
| Actor | Role |
|---|---|
 Françoise Dorner'BB la brune' | 'BB la brune' |
 Tony GatlifNanar | Nanar |
| PPhilippe LavotAntoine | Antoine |
 Marie-Georges PascalChristine | Christine |
 Pascale RobertsMother | Mother |
 Étienne BierryFather | Father |
 Pierre TornadeJo, bar owner | Jo, bar owner |
| GGilles ChevallierJohnny | Johnny |
| PPatrick JeantetDédé | Dédé |
 Frédéric NorbertMichou | Michou |
 Sylvain RougerieBouboule | Bouboule |
 Roger DumasNeighbor | Neighbor |
 Jacques AlricPoliceman | Policeman |
 Fred UlysseSevin | Sevin |
| FFrédéric SimonRico, Tonio's little brother | Rico, Tonio's little brother |
| DDenise DaxProstitute | Prostitute |
 André ThorentCommissioner | Commissioner |
| DDominique ZentarWomanizer | Womanizer |
| JJ.M. RibeiroRico's buddy | Rico's buddy |
 Jean LuisiFence | Fence |
 Pierre KoulakAbderrahmane | Abderrahmane |
| JJean-Pierre SolalSoothsayer at Christine | Soothsayer at Christine |
 Yves GabrielliNot listed | Not listed |
 Jean-Louis FortuitPoliceman | Policeman |
| MMadeleine GanneNot listed | Not listed |
| MMimi YoungNot listed | Not listed |
| LLydia FeldNot listed | Not listed |
| MMaurice VodeauNot listed | Not listed |
| AAntoinette MoyaNot listed | Not listed |