An elderly man is murdered in his lavish Italian castle. When his friends and family arrive there for the reading of his will, the murderer has plans to continue his gory killing spree.
Unfortunately the movie Demonium is not yet available on HBO Max.
| Directing | Andreas Schnaas | Director |
| Writing | Ted Geoghegan | Writer |
| Writing | Sonja Schnaas | Writer |
| Production | Andreas Schnaas | Producer |
| Production | Sonja Schnaas | Producer |
| Sound | Marc Trinkhaus | Music |
| Visual Effects | Sergio Stivaletti | Visual Effects |
| Directing | Sonja Schnaas | Second Assistant Director |
