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 |
| Production | Pio Angeletti | Producer |
| Production | Adriano De Micheli | Producer |
| Sound | Francis Lai | Original Music Composer |
| Editing | Alberto Gallitti | Editor |
| Writing | Bernardino Zapponi | Screenplay |
| Writing | Dino Risi | Screenplay |
| Directing | Claudio Risi | Assistant Director |
| Art | Luciano Ricceri | Production Design |
| Art | Luciano Ricceri | Set Decoration |
| Costume & Make-Up | Luciano Ricceri | Costume Design |
| Production | Mario D'Alessio | Production Manager |
| Sound | Christian Gaubert | Music Arranger |
| Production | Fausto Capozzi | Production Secretary |
| Costume & Make-Up | Antonio Randaccio | Assistant Costume Designer |
| Art | Paolo Biagetti | Assistant Production Design |
| Art | Ezio Di Monte | Assistant Production Design |
| Production | Roberto Mezzaroma | Administration |
| Camera | Carlo Tafani | Camera Operator |
| Sound | Vittorio Massi | Sound |
| Costume & Make-Up | Giusy Bovino | Hairstylist |
| Costume & Make-Up | Giulio Natalucci | Makeup Artist |
| Costume & Make-Up | Alfonso Gola | Makeup Artist |
| Editing | Lidia Pascolini | Assistant Editor |
| Editing | Anna Rosa Napoli | Assistant Editor |
| Camera | Huguette Roux | Still Photographer |
| Crew | Maria Ruhle | Unit Publicist |
| Sound | Renato Marinelli | Sound Effects |
| Sound | Romano Checcacci | Sound Mixer |
| Camera | Tonino Delli Colli | Director of Photography |
