A movie divided in two segments, the first "La puerta" (The Door) is about a high society gathering in which a door inside the mansion leads to a bizarre corridor where a naked and menacing human figure appears. The second "La mujer del carnicero" (The Butcher's Wife) is set during the Mexican revolution and is about horrifying hallucinations felt by a lieutenant after committing a murder.
| Directing | Luis Alcoriza | Director |
| Directing | Ismael Rodríguez | Director |
| Directing | Chano Urueta | Director |
| Writing | Luis Alcoriza | Story |
| Writing | Pedro F. Miret | Story |
| Writing | Ismael Rodríguez | Story |
| Writing | Pedro de Urdimalas | Story |
| Writing | Mario Hernández | Story |
| Production | Ismael Rodríguez | Producer |
| Sound | Raúl Lavista | Music |
| Camera | Gabriel Figueroa | Director of Photography |
| Camera | Álex Phillips Jr. | Director of Photography |
| Editing | Jorge Busto | Editor |
| Sound | Enrique Rodríguez | Sound |
| Lighting | Daniel López | Lighting Technician |
| Camera | Ignacio Romero | Camera Operator |
| Editing | Tere Moreno | Negative Cutter |
