Unable to process the death of his daughter, Detective Boyd embarks on a hunt for a serial killer who murders according to a brutal tribal ritual: Muti. The only person who can help Boyd is Professor Mackles, an anthropologist who hides an unspeakable secret. The line between sanity and madness thins as Boyd goes deeper into the killer’s world.
Unfortunately the movie The Ritual Killer is not yet available on HBO Max.
| Directing | George Gallo | Director |
| Camera | Andrzej Sekula | Director of Photography |
| Writing | Francesco Cinquemani | Story |
| Writing | Giorgia Iannone De Sousa | Story |
| Writing | Joe Lemmon | Story |
| Production | Danielle Maloni | Producer |
| Production | Marc Danon | Executive Producer |
| Writing | Luca Giliberto | Screenplay |
| Production | Monika Bacardi | Producer |
| Production | Giovanna Trischitta | Executive Producer |
| Writing | Francesco Cinquemani | Screenplay |
| Production | Joe Lemmon | Producer |
| Production | Andrea Iervolino | Producer |
| Production | Galen Smith | Executive Producer |
| Sound | Tom Russbueldt | Original Music Composer |
| Production | Bret Saxon | Producer |
| Editing | Yvan Gauthier | Editor |
| Production | Richard Salvatore | Executive Producer |
| Sound | Aldo Shllaku | Music Producer |
| Production | Jeff Bowler | Producer |
| Production | Luca Matrundola | Executive Producer |
| Production | Dean E. Fronk | Casting |
| Writing | Bob Bowersox | Screenplay |
| Writing | Jennifer Lemmon | Screenplay |
| Production | David E. Ornston | Executive Producer |
| Production | Donald Paul Pemrick | Casting |
| Production | Nate Adams | Executive Producer |
| Art | Francesco Cotone | Production Design |
| Writing | Giorgia Iannone De Sousa | Screenplay |
| Production | Nat McCormick | Executive Producer |
| Art | Markos Keyto | Production Design |
| Costume & Make-Up | Lenka Padysakova | Costume Designer |
| Writing | Ferdinando Dell'Omo | Screenplay |
| Art | Joe Lemmon | Production Design |
| Production | Denise Loren | Unit Production Manager |
| Directing | Jared Briley | First Assistant Director |
| Camera | Brock Morse | Still Photographer |
| Costume & Make-Up | Critter Pierce | Costume Supervisor |
| Crew | Nick Loren | Stunt Coordinator |
| Production | Kai Williams | Production Coordinator |
| Production | Salvatore Lizzio | Production Manager |
| Sound | Teddy Champion | Sound Mixer |
| Directing | Maggie Ballard | Second Assistant Director |
| Production | Fabio Varlese | Executive Producer |
| Camera | Dan Anderson | Still Photographer |
| Sound | Joseph Batiste | Sound Mixer |
| Production | Ana Menendez | Production Executive |
| Directing | Jane Gauthier | Assistant Director |
| Directing | Tamara Hansen | Script Supervisor |
| Crew | Simone Belli | Fight Choreographer |
