In Madrid, Spain, at the end of the 19th century, the young and reckless Basilio seems to be the only person who perceives the spectral presence of Professor Robinsón de Mantua, who begs him to take care of his niece Inés, because she is in grave danger.
| Directing | Edgar Neville | Director |
| Writing | Emilio Carrère | Novel |
| Production | Luis Judez | Producer |
| Production | Germán López Prieto | Producer |
| Sound | José Ruiz de Azagra | Original Music Composer |
| Camera | Enrique Barreyre | Director of Photography |
| Editing | Sara Ontañón | Editor |
| Costume & Make-Up | Antonio Florido | Makeup Artist |
| Production | Fernando Roldán | Production Manager |
| Writing | Edgar Neville | Screenplay |
| Writing | José Santugini | Screenplay |
| Sound | Enrique Domínguez | Sound |
| Camera | Andrés Pérez Cubero | Camera Operator |
| Art | Francisco Canet Cubel | Production Design |
