The Deliverance description:

In a case widely covered at the time, Latoya Ammons and her three children experienced strange incidents in their Gary, IN, home that grew progressively worse, with the children levitating, becoming violent with one another and speaking in growls and deep voices with no recollection afterward. Skeptics abounded, but the Gary Police Department, Department of Child Services and the local church and hospital all became involved, filing reports that took the supernatural occurrences seriously. Officers, doctors and social workers said they witnessed many of the incidents, including one in which her 9-year-old son walked backward up a wall. The Indianapolis Star covered it closely as the Department of Child Services investigated it.