The lives of the Barretts, a suburban New England family, are torn apart when 14-year-old Marjorie begins to display signs of acute schizophrenia. To her parents’ despair, the doctors are unable to halt Marjorie’s descent into madness. As their stable home devolves into a house of horrors, they reluctantly turn to a local Catholic priest for help, and so find themselves the unwitting stars of ‘The Possession,’ a hit reality TV show.