Karl, a sixth year student preparing to sit his Leaving Cert exams, becomes the target of a gang of bullies. With no support from his family and no friends to turn to, Karl falls victim to the psychological manipulation of a school teacher and soon turns to social media as a form of escapism where he develops an online friendship with a woman.

In her final year at school, Anthropology student Lorraine decides to film her final project – the subject of exorcism within the Catholic Church. Recording interviews with priests from the local diocese, she stumbles upon Fr. Byrne, an older priest who is currently helping a young mother whose daughter is apparently possessed by a demonic force. The curiosity of Lorraine, along with her camera operator, Cathal, leads them down a dark path of discovering the terrifying truth, and things go from strange to worse as all involved become entangled into a frightful journey to save a little girl’s life.