After a period of inactivity, Crisanto, a police inspector, returns to the service. When a friend of his is murdered, he decides to take over the investigation.
| Actor | Role |
|---|---|
 Eusebio PoncelaCrisanto | Crisanto |
 Isabel MestresMaricruz | Maricruz |
 Pedro Díez del CorralLeo | Leo |
| MMamen del ValleAna | Ana |
| FFrancisco PortesA. Toledano | A. Toledano |
| JJosé Luis BarcelóC. Rufino | C. Rufino |
 Pilar AlcónMagdalena S. | Magdalena S. |
 Carmen RossiParisina | Parisina |
 Adrián OrtegaSubcomisario | Subcomisario |
 Elisenda RibasFelisa | Felisa |
 Emilio FornetAtanasio | Atanasio |
| FFelicidad BlancAngustias | Angustias |
 Raúl FraireTristán | Tristán |
 Mery LeyvaModesta | Modesta |
 Marta Fernández MuroJoaquina | Joaquina |
| FFelipe GarciaRubén | Rubén |
| FFélix MoixSebastián | Sebastián |
| ÁÁngel RománGabriel | Gabriel |
 Carlos LucasMacario | Macario |
| AAvelino CánovasNemesio | Nemesio |
| PPedro Luis LavillaCamilo Aguado | Camilo Aguado |
| CCarlos RuizMalayo | Malayo |
| AAparicio RiveroPiernas | Piernas |
| JJesús CracioInspector Mateos | Inspector Mateos |
| CCasimira EncinasÁfrica | África |
| JJose Luis GuerreroPolilla | Polilla |
| JJuan Francisco GuerreroFittipaldi | Fittipaldi |
 Will MoreAlejandro García (uncredited) | Alejandro García (uncredited) |