Based on true events, this documentary-style horror flick follows two amateur filmmakers (Rob G. Kahn and David Michael Ross) as they record an exorcism performed on a young girl (Dara Wedel) suffering from demonic possession. Over three days, priests Father Michael (Matthew Ashford) and Father Lucas (Nick G. Miller) faithfully work to rid the girl of the evil entity but soon realize they're facing the most sinister demon that exists.