Bizarre events keep occurring in an old mansion, and it's soon become obvious that something mysterious is up in the attic.
Unfortunately the movie Lost Soul is not yet available on HBO Max.
| Directing | Dino Risi | Director |
| Writing | Giovanni Arpino | Novel |
| Editing | Alberto Gallitti | Editor |
| Production | Adriano De Micheli | Producer |
| Sound | Francis Lai | Original Music Composer |
| Production | Pio Angeletti | Producer |
| Production | Roberto Mezzaroma | Administration |
| Art | Paolo Biagetti | Assistant Production Design |
| Art | Ezio Di Monte | Assistant Production Design |
| Writing | Dino Risi | Screenplay |
| Art | Luciano Ricceri | Set Decoration |
| Sound | Christian Gaubert | Music Arranger |
| Production | Fausto Capozzi | Production Secretary |
| Directing | Claudio Risi | Assistant Director |
| Production | Mario D'Alessio | Production Manager |
| Crew | Maria Ruhle | Unit Publicist |
| Sound | Romano Checcacci | Sound Mixer |
| Costume & Make-Up | Luciano Ricceri | Costume Design |
| Costume & Make-Up | Giusy Bovino | Hairstylist |
| Writing | Bernardino Zapponi | Screenplay |
| Art | Luciano Ricceri | Production Design |
| Costume & Make-Up | Antonio Randaccio | Assistant Costume Designer |
| Sound | Vittorio Massi | Sound |
| Camera | Carlo Tafani | Camera Operator |
| Costume & Make-Up | Alfonso Gola | Makeup Artist |
| Camera | Huguette Roux | Still Photographer |
| Costume & Make-Up | Giulio Natalucci | Makeup Artist |
| Editing | Anna Rosa Napoli | Assistant Editor |
| Editing | Lidia Pascolini | Assistant Editor |
| Sound | Renato Marinelli | Sound Effects |
| Camera | Tonino Delli Colli | Director of Photography |
