The prestigious composer Virgilio Delise, suspected of being involved in the death of his stepfather, unexpectedly runs away. Doria, an ambitious insurance detective, will stop at nothing to prove his guilt.
| Writing | Josep Maria Forn | Screenplay |
| Directing | Josep Maria Forn | Director |
| Production | Eduardo Sancho | General Manager |
| Sound | Federico Martínez Tudó | Original Music Composer |
| Editing | Juan Luis Oliver | Editor |
| Sound | Miguel Sitges | Sound Engineer |
| Production | Carlos Boué | Production Manager |
| Writing | Mario Lacruz | Novel |
| Production | Augusto Boué | Production Manager |
| Writing | Mario Lacruz | Screenplay |
| Costume & Make-Up | Gabriel Comella | Makeup Designer |
| Camera | Antonio Macasoli | Director of Photography |
| Camera | Sebastián Perera | Director of Photography |
| Production | Josep Maria Forn | Producer |
