Based on the True Story, The Watseka Wonder, America's first documented possession in 1870. A chilling story of a 13-year-old girl from the small town of Watseka, Illinois who became possessed by spirits of the insane dead.

Follows Hollywood filmmakers, The Booth Brothers as they uncover the shocking truth within the haunted halls of The Scariest Place On Earth, Waverly Hills Sanatorium, a monster of a building where it is said over 63,000 people died.

Living with only her younger son, who's more concerned with his band and best friend than his mother, to keep her company, Barbara Scott finds a friend in Joyce McBride, as the two of them discover their shared illicit pasts and begin to plan the next stages of their lives.