In Juan-les-Pins, Serge drops off a hitchhiker, Sylvie, who joins "Théo's gang", a group of students and workers, all young, all broke, improvising their vacations from day to day. Among them, Serge meets Helle, a discreet young girl with whom he quickly falls in love, but whom he can only win over once he's sorted out his many problems with the wrong people.
| Actor | Role |
|---|---|
 Nino FerrerSerge | Serge |
 Katina PaxinouMarya | Marya |
 Marilù ToloNot listed | Not listed |
 Daniel BerettaHippie | Hippie |
 Pierre PerretNot listed | Not listed |
 Juliet BertoSylvie | Sylvie |
| RRichard de BordeauxNot listed | Not listed |
| JJessica DornHelle | Helle |
 Antonio PassaliaNot listed | Not listed |
 Albert MinskiNot listed | Not listed |
 Albert AugierNot listed | Not listed |
 Gérard ZimmermannNot listed | Not listed |
 Daniel BellusNot listed | Not listed |
| BBarre PhillipsNot listed | Not listed |
| DDanny GobertNot listed | Not listed |
| AAimé BallouNot listed | Not listed |
| VVera VitratNot listed | Not listed |
| AAngele BacciocchiNot listed | Not listed |
| PPaul PériNot listed | Not listed |
 Jacques LegrasNot listed | Not listed |
| HHazel GoldingEnglish Tourist, passenger (uncredited) | English Tourist, passenger (uncredited) |
| NNorbert GoldingEnglish Tourist, driver (uncredited) | English Tourist, driver (uncredited) |