After a traumatic accident during a hypnosis seance, young psychiatrist Louise opens a new office in the middle of nowhere. When she starts analyzing Theo, a dark and mysterious man, people around her start to die.
You can now watch Mastemah online on the following streaming providers in the United States.
| Directing | Didier D. Daarwin | Director |
| Production | Thierry Aflalou | Producer |
| Production | Jean-Yves Roubin | Producer |
| Production | Camille Trumer | Producer |
| Production | Cassandre Warnauts | Producer |
| Production | Anne-Laure Declerck | Producer's Assistant |
| Production | Christophe Hollebeke | Executive Producer |
| Production | Philippe Logie | Associate Producer |
| Camera | Emmanuel Bernard | Director of Photography |
| Art | Serge Borgel | Production Design |
| Costume & Make-Up | Nathalie De Hen | Makeup Artist |
| Costume & Make-Up | Saskia Verreycken | Prosthetic Designer |
| Production | Geoffroy Appourchaux | Assistant Unit Manager |
| Production | Emmanuel Comte | Unit Manager |
| Production | Anne-Laure Danière | Production Assistant |
| Production | Mélanie Dieter | Production Manager |
| Production | Virginie Frutoso | Assistant Unit Manager |
| Production | Guillaume Rafananenena | Assistant Unit Manager |
| Directing | Aline Bessaha | Third Assistant Director |
| Directing | Julie Grumbach | First Assistant Director |
| Directing | Aurélie Moreau | Second Assistant Director |
| Art | Thomas Carnet | Props |
| Art | Cynthia Hernout | Assistant Art Director |
| Art | Jean-Pierre Leon | Graphic Designer |
| Art | Amélie Meseguer | Set Dresser |
| Art | Sylvain Scheubel | Assistant Art Director |
| Sound | Ophélie Boully | Sound Mixer |
| Sound | Antoine Citrinot | Sound Editor |
| Sound | Sébastien Crueghe | Foley Artist |
| Sound | Sébastien Crueghe | Music Editor |
| Sound | Sébastien Crueghe | Sound Re-Recording Mixer |
| Sound | Emmanuel de Boissieu | Sound Re-Recording Mixer |
| Sound | Lionel Halflants | Boom Operator |
| Sound | Alexis Place | Sound Designer |
| Camera | Morgan Dandre | Grip |
| Camera | Etienne Durand | First Assistant Camera |
| Camera | Guillaume Grandin | Key Grip |
| Crew | Sarah Hierneaux | Video Assist Operator |
| Lighting | François Le Goazigo | Gaffer |
| Crew | Frederic Moura | Drone Operator |
| Camera | Jimmy Wolf Nguyen | Second Assistant Camera |
| Camera | Walter Romand | Drone Pilot |
| Lighting | William Scourneau | Electrician |
| Costume & Make-Up | Aude Amédéo | Costumer |
| Costume & Make-Up | Chantal Castelli | Costumer |
| Costume & Make-Up | Edwige Morel D'Arleux | Costumer |
| Costume & Make-Up | Aïda Rifai | Wardrobe Master |
| Costume & Make-Up | Morgane Tack | Wardrobe Assistant |
| Writing | Johanne Rigoulot | Scenario Writer |
| Writing | Didier D. Daarwin | Scenario Writer |
| Writing | Thierry Aflalou | Original Concept |
| Writing | Thierry Aflalou | Idea |