In her last year of school, anthropology major Lorraine chooses to create a film for her final project, focusing on exorcism practices in the Catholic Church. As she conducts interviews with priests from the nearby diocese, she encounters Fr. Byrne, an elderly priest assisting a young mother whose daughter seems to be under the influence of a demonic entity. Lorraine’s inquisitiveness, along with her cameraman Cathal, draws them into a sinister exploration of a horrifying reality. The situation escalates from odd to perilous as everyone involved becomes ensnared in a harrowing quest to rescue the young girl.