Madrid, late 19th century. A wealthy woman is found murdered at home and her maid appears as the main suspect, but her statement entangles this seemingly simple case.
| Directing | Edgar Neville | Director |
| Editing | Bienvenida Sanz | Editor |
| Production | Manuel del Castillo | Producer |
| Sound | Ramón Arnal | Sound |
| Writing | Edgar Neville | Writer |
| Production | Juan Francisco Blanco Lavín | Line Producer |
| Camera | Enrique Barreyre | Director of Photography |
| Sound | José Muñoz Molleda | Original Music Composer |
| Art | Sigfrido Burman | Set Decoration |
| Directing | Enrique F. Sagaseta | Assistant Director |
