Some kind of sadist, but not human, is murdering people. A doctor is convinced that the killings are the evil workings of a reclusive odd baron who died many years ago.
| Writing | José Luis Madrid | Screenplay |
| Directing | José Luis Madrid | Director |
| Writing | José Luis Madrid | Story |
| Production | Al Peppard | Producer |
| Sound | Ángel Arteaga | Original Music Composer |
| Camera | Francisco J. Madurga | Director of Photography |
| Editing | Gaby Douglas | Editor |
| Production | Joseph Teller | Production Manager |
