Four people meet in a chalet in the Madrid area. During the play it is discovered that all four are dead.
| Directing | José Luis Madrid | Director |
| Writing | Víctor Auz | Writer |
| Writing | Ángel del Castillo | Writer |
| Writing | José Luis Hernández Marcos | Writer |
| Writing | José López Rubio | Theatre Play |
| Sound | Federico Martínez Tudó | Music |
| Crew | Aurelio G. Larraya | Cinematography |
| Editing | Antonio Cánovas | Editor |
| Art | Manuel Infiesta | Set Decoration |