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 |
| Production | Fernando Roldán | Production Manager |
| Sound | José Ruiz de Azagra | Original Music Composer |
| Writing | Emilio Carrère | Novel |
| Production | Luis Judez | Producer |
| Camera | Enrique Barreyre | Director of Photography |
| Costume & Make-Up | Antonio Florido | Makeup Artist |
| Editing | Sara Ontañón | Editor |
| Production | Germán López Prieto | Producer |
| Writing | José Santugini | Screenplay |
| Sound | Enrique Domínguez | Sound |
| Writing | Edgar Neville | Screenplay |
| Camera | Andrés Pérez Cubero | Camera Operator |
| Art | Francisco Canet Cubel | Production Design |
