In 1989, emergency responders received a 9-1-1 call from Maria Rossi, confessing that she had brutally killed three people. 20 years later, her daughter Isabella seeks to understand the truth about what happened that night. She travels to the Centrino Hospital for the Criminally Insane in Italy where her mother has been locked away to determine if she is mentally ill or demonically possessed. When Isabella recruits two young exorcists to cure her mom using unconventional methods, combining both science and religion, they come face-to-face with pure evil in the form of four powerful demons possessing Maria.
Rated R by the Motion Picture Association of America for disturbing violent content and grisly images, and for language including some sexual references.