A city, a detective and a game where life is the stake. Paul Naschy plays Carlos Oliarte, a ruthless psychopath capable of risking his life playing Russian roulette for the pleasure of contemplating the fear of others, where the difference between living or dying is marked by a .38 revolver.
| Actor | Role |
|---|---|
 Paul NaschyCarlos Oliarte | Carlos Oliarte |
| CCarlos GuglieriGermán Falco | Germán Falco |
| PPaloma MerinoLaura Noguer | Laura Noguer |
| EEva LatondaGina | Gina |
| PPedro MeroñoNoel Dumas | Noel Dumas |
| FFernando MierCapitan Checa | Capitan Checa |
| IIsaac HamsalemNot listed | Not listed |