I managed similar cases for 9 years and I see chilling similarities to our cases; Sclera (no pupils), flying across the room, levitation, visions, hair pulling, slapping and personal invasions. Demonic infestations, manifestations and injuries are common. There is no science to the invasions. Science is only used in attempt to explain away medical causes while monitoring the victims health. These instances are slim (less than 1% receive this benefit). Remember, demonic possession doesn't exist, yet it does according to psychological diagnosis codes, Yet, if medical professionals have no choice but to use it, then the victim is usually hospitalized due to incompetence. It's easier to dismiss it was a psychological issue, however that only becomes true when the problem is ignored or goes on unaddressed. Demons, diabolical entities and even Satan that can inhibit a host (Christian or not). This film should ring as a warning to everyone that its not all or just entertainment. I personally think that Hollywood should embrace this film as a near reality, believe it or not and that my friends is truly frightening.