Mastemah

In the thriller horror film "Mastemah," young psychiatrist Louise Wilmens (Camille Razat) opens a new office in a remote area after a traumatic accident during a hypnosis seance. When she starts analyzing Theo (Olivier Barthélémy), a dark and mysterious man, people around her start to die. As the body count rises, Louise's life becomes a descent into hell, with Father Sylvain (Féodor Atkine) being a pivotal figure in this nightmare.