Oscar is trying to re-establish an affair with Sandra, a disturbed young woman. Having found her husband Fabrizio shot dead and her young son Ricky standing beside him with a gun, Sandra suffered a complete breakdown and now lives in isolation with her protective mother. The latter saved the young boy from recrimination by placing the gun in his father's hand, making it seem like he committed suicide. However, things are not what they seem...
Unfortunately the movie Devil in the Brain is not yet available on HBO Max.
| Editing | Giuliano Mattioli | Assistant Editor |
| Sound | Ennio Morricone | Original Music Composer |
| Costume & Make-Up | Amato Garbini | Makeup Artist |
| Directing | Romano Scandariato | Second Assistant Director |
| Camera | Divo Cavicchioli | Still Photographer |
| Camera | Enrico Cortese | Camera Operator |
| Production | Giancarlo Bartolini Salimbeni | Production Designer |
| Production | Bianca Lattuada | General Manager |
| Directing | Fabrizio Sergenti Castellani | First Assistant Director |
| Costume & Make-Up | Gabriella Borzelli | Hairstylist |
| Writing | Sergio Sollima | Screenplay |
| Editing | Sergio Montanari | Editor |
| Costume & Make-Up | Enrico Job | Costume Designer |
| Writing | Sergio Sollima | Story |
| Production | Maurizio Lodi-Fè | Producer |
| Art | Sergio Palmieri | Set Decoration |
| Writing | Luigi Emmanuele | Story |
| Sound | Amedeo Casati | Sound Mixer |
| Costume & Make-Up | Valeria Sponsali | Seamstress |
| Directing | Bona Magrini | Script Supervisor |
| Writing | Suso Cecchi d'Amico | Screenplay |
| Production | Bianca Lattuada | Production Supervisor |
| Production | Gino Soldi | Production Supervisor |
| Camera | Carlo Petriccioli | Assistant Camera |
| Costume & Make-Up | Anna Maria Tucci | Assistant Costume Designer |
| Sound | Domenico Pasqua Di Bisceglie | Boom Operator |
| Directing | Sergio Sollima | Director |
| Production | Carmine Del Monaco | Production Secretary |
| Editing | Benedetto Angeli | Assistant Editor |
| Crew | Aldo Scavarda | Cinematography |
