On September 21, 1986, two priests arrived at the Martin Family home in rural Connecticut to investigate an apparent case of demonic possession. Only two people would leave the house alive. After confronting unspeakable dark entities and narrowly escaping with his life, a young priest descends into a new nightmare.

On September 21, 1986, two priests arrived at the Martin Family home in rural Connecticut to investigate an apparent case of demonic possession. Only two people would leave the house alive. After confronting unspeakable dark entities and narrowly escaping with his life, a young priest descends into a new nightmare.