In a music hall has committed a murder, the police will also find the murderer.
| Directing | Fernando Cortés | Director |
| Writing | Fernando Galiana | Story |
| Writing | Fernando Cortés | Screenplay |
| Editing | Carlos Savage | Editor |
| Costume & Make-Up | Concepción Zamora | Makeup Artist |
| Production | Jesús Sotomayor Martínez | Producer |
| Art | Rafael Suárez | Set Decoration |
| Camera | José Ortiz Ramos | Director of Photography |
| Sound | Francisco Alcayde | Sound Recordist |
| Production | Mauricio Rojas | Casting |
| Art | Jesús Bracho | Production Design |
| Costume & Make-Up | Teresa Sánchez | Hairstylist |
| Directing | Winfield Sánchez | Assistant Director |
| Sound | Jesús González Gancy | Sound Director |
| Crew | León Escobar | Choreographer |
| Sound | Sergio Guerrero | Original Music Composer |
| Production | Luis G. Rubín | Production Manager |
| Camera | Manuel González | Camera Operator |
| Crew | Eduardo Mendoza | Title Graphics |
| Crew | Jorge Benavides | Special Effects |
| Camera | Miguel Araña | Camera Operator |
| Editing | Teódulo Bustos | Editorial Coordinator |
| Directing | Carlos Falomir | Script Supervisor |
