A group of people are trapped in a West Berlin movie theater infested with ravenous demons who proceed to kill and possess the humans one-by-one, thereby multiplying their numbers.
You can now watch Demons online on the following streaming providers in the United States.
| Writing | Lamberto Bava | Screenplay |
| Crew | Sergio Stivaletti | Makeup Effects |
| Writing | Dario Argento | Screenplay |
| Crew | Rosario Prestopino | Makeup Effects |
| Writing | Franco Ferrini | Screenplay |
| Directing | Lamberto Bava | Director |
| Camera | Gianlorenzo Battaglia | Director of Photography |
| Production | Dario Argento | Producer |
| Writing | Dardano Sacchetti | Screenplay |
| Directing | Michele Soavi | Assistant Director |
| Writing | Dardano Sacchetti | Original Story |
| Sound | Claudio Simonetti | Original Music Composer |
| Editing | Piero Bozza | Editor |
| Production | Davide Bassan | Production Designer |
| Costume & Make-Up | Marina Malavasi | Costume Design |
| Costume & Make-Up | Patrizia Massaia | Costume Design |
