As he helps a young artist with her upcoming exhibition, the owner of a mannequin shop's deadly, suppressed desires come to the surface.
Unfortunately the movie Maniac is not yet available on HBO Max.
| Writing | Alexandre Aja | Screenplay |
| Writing | Grégory Levasseur | Screenplay |
| Writing | Joe Spinell | Original Film Writer |
| Writing | C.A. Rosenberg | Original Film Writer |
| Directing | Franck Khalfoun | Director |
| Production | Alexandre Aja | Producer |
| Production | Thomas Langmann | Producer |
| Production | William Lustig | Producer |
| Camera | Maxime Alexandre | Director of Photography |
| Production | Lisa Fields | Casting |
| Production | John Barba | Casting |
| Costume & Make-Up | Mairi Chisholm | Costume Design |
| Editing | Franck Khalfoun | Editor |
| Art | Stefania Cella | Production Design |
| Art | dooner | Art Direction |
| Costume & Make-Up | Lorraine Martin | Makeup Department Head |
| Sound | Emmanuel Augeard | Sound Designer |
| Visual Effects | Jamison Scott Goei | Visual Effects Supervisor |
| Production | Antoine de Cazotte | Executive Producer |
| Production | Daniel Delume | Executive Producer |
| Production | Andrew W. Garroni | Executive Producer |
| Production | Pavlina Hatoupis | Executive Producer |
| Production | Alix Taylor | Executive Producer |
| Directing | Matt Henderson | First Assistant Director |
| Directing | Marie-Hélène Riverain | Second Assistant Director |
| Directing | John David Denison | Second Unit Director |
| Costume & Make-Up | Jean Webber | Key Hair Stylist |
| Costume & Make-Up | Jose Zamora | Hair Department Head |
| Sound | Franck Tassel | Foley Artist |
| Sound | Jérémy Babinet | Foley Editor |
| Sound | Zsolt Magyar | Sound Mixer |
| Crew | Mario Pérez | Stunt Double |
| Crew | Lee Whittaker | Stunt Double |
| Lighting | Chris Carroll | Gaffer |
| Camera | Kaiyoti | Grip |
| Camera | Jason B. McCann | Grip |
| Sound | Adrien Arnaud | Sound Editor |
| Sound | Vincent Cosson | Sound Re-Recording Mixer |
| Sound | François-Joseph Hors | Sound Re-Recording Mixer |
| Visual Effects | V.W. Scheich | Visual Effects Producer |
| Costume & Make-Up | Tiger Curran | Set Costumer |
| Sound | Robin Coudert | Original Music Composer |
| Crew | Jessica Harbeck | Stunt Double |
| Crew | Keith Woulard | Stunt Coordinator |
