Tony wants to carry out a perfect robbery and get a lot of money during the celebration of the 24 Hours of Montjuic, a motorcycle race. To accomplish this, he counts with the complicity of Peter, a runner who wants to switch to professional level. Everything is carefully planned, but at the last moment a crime is committed and Peter is trapped in the house of the victim unable to get out as the gate has been locked. The only way to help Peter is that Tony gets a copy of the key that Carmen has, the girl who took care of the victim, before she returns home.
| Actor | Role |
|---|---|
 Marisa ParedesCarmen - Prima política de Toni | Carmen - Prima política de Toni |
 Eusebio PoncelaPedro | Pedro |
 Simón AndreuToni | Toni |
| MMontserrat SalvadorMadre de Toni | Madre de Toni |
 Juan RibóPaco | Paco |
 Alfredo MayoPadre de Toni | Padre de Toni |
 Carlos LucenaMecánico | Mecánico |
| MMaría ReniuAna | Ana |
 Josep CastilloVecino | Vecino |
 Marta FloresEmpleada de la taquilla | Empleada de la taquilla |
| MMaría QuirósNot listed | Not listed |
 Antonio SarráJuez de pista | Juez de pista |
 Alicia AgutMadre de Pedro | Madre de Pedro |
| JJordi TorrasMédico | Médico |
| EEdel SanchoNot listed | Not listed |
| LLiz VillarVecina | Vecina |
 Fredy RipersBarman | Barman |
| JJose Luis AguadoNot listed | Not listed |
 María ElíasAmiga de Pedro (uncredited) | Amiga de Pedro (uncredited) |