Relatives of a recently deceased man meet at his eerie castle for a reading of the will. They encounter a sinister piano player who turns out to be a toy maker, and his toys are imbued with murderous intentions.
| Directing | Juan Ibáñez | Director |
| Directing | Jack Hill | Director |
| Editing | Ángel Camacho | Editor |
| Writing | José Méndez | Screenplay |
| Writing | Octavio Ocampo | Screenplay |
| Art | Raúl Cárdenas | Set Decoration |
| Costume & Make-Up | Tony Ramirez | Makeup Artist |
| Costume & Make-Up | Tostada | Wardrobe Supervisor |
| Directing | José Luis González de León | Co-Director |
| Directing | Stim Segar | Other |
| Sound | Enrico C. Cabiati | Music |
| Writing | Jack Hill | Screenplay |
| Writing | Luis Enrique Vergara | Screenplay |
| Art | José Méndez | Art Direction |
| Art | Octavio Ocampo | Art Direction |
| Production | Luis Enrique Vergara | Producer |