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.
| Directing | Sergio Sollima | Director |
| Writing | Suso Cecchi d'Amico | Screenplay |
| Writing | Luigi Emmanuele | Story |
| Writing | Sergio Sollima | Screenplay |
| Writing | Sergio Sollima | Story |
| Production | Bianca Lattuada | Production Supervisor |
| Production | Maurizio Lodi-Fè | Producer |
| Sound | Ennio Morricone | Original Music Composer |
| Editing | Sergio Montanari | Editor |
| Production | Giancarlo Bartolini Salimbeni | Production Designer |
| Art | Sergio Palmieri | Set Decoration |
| Costume & Make-Up | Enrico Job | Costume Designer |
| Costume & Make-Up | Gabriella Borzelli | Hairstylist |
| Costume & Make-Up | Amato Garbini | Makeup Artist |
| Production | Carmine Del Monaco | Production Secretary |
| Production | Bianca Lattuada | General Manager |
| Production | Gino Soldi | Production Supervisor |
| Directing | Romano Scandariato | Second Assistant Director |
| Directing | Fabrizio Sergenti Castellani | First Assistant Director |
| Sound | Amedeo Casati | Sound Mixer |
| Sound | Domenico Pasqua Di Bisceglie | Boom Operator |
| Camera | Divo Cavicchioli | Still Photographer |
| Camera | Enrico Cortese | Camera Operator |
| Camera | Carlo Petriccioli | Assistant Camera |
| Costume & Make-Up | Valeria Sponsali | Seamstress |
| Costume & Make-Up | Anna Maria Tucci | Assistant Costume Designer |
| Editing | Benedetto Angeli | Assistant Editor |
| Editing | Giuliano Mattioli | Assistant Editor |
| Directing | Bona Magrini | Script Supervisor |
| Camera | Aldo Scavarda | Director of Photography |
