Located in Baton Rouge County, Louisiana, there lives a young pastor named Corden Marcos (Patrick Fabian). He has been studying the Bible with his father since he was a child. His preaching style is unique and popular, but it is just a livelihood for him. At home, Corden is a good husband and a good father, living a happy life with his wife and children. The Marcos family is also a family with rich experience in exorcism, but some hypocritical exorcism rituals make Corden distressed. He then invited a crew to shoot a documentary to expose the deception in the exorcism ritual. At this time, the Ivanwood family in another state wrote to ask for help. Corden decided to make it his last exorcism. He and the crew drove there and successfully performed an exorcism ritual for the girl Nell. However, everything did not end there, and horrible things happened one after another...