Johnny Durán, who is seventeen years old and son of a multimillionaire, arrives to Madrid for hollidays. In the capital he become friend of a group of boys and girls with whom he shares great moments; but soon he realice that they are a clan of thugs and decides to distance themselves. He also meets Paula, daugther of an italian family that is travelling, and they both feel atracted by each other. Since then, started happening a serie of unexpected events which the guy will have to solve with tenacity and responsibility.
| Actor | Role |
|---|---|
 Alberto AlonsoNot listed | Not listed |
 Io AppolloniPaola Di Risi | Paola Di Risi |
 José María CaffarelNot listed | Not listed |
 JoselitoJohnny | Johnny |
| IIngrid SimonPaola | Paola |
 Luis Prendesle père de Johnny | le père de Johnny |
 Marisa Merlinila mère de Johnny | la mère de Johnny |
| MMaría Esther VázquezNot listed | Not listed |
 Jesús PuenteNot listed | Not listed |
 Joaquín PamplonaNot listed | Not listed |
 Antonio MorenoNot listed | Not listed |
 Emilio RodríguezComisario | Comisario |