Dr. Adrian Vale is one of the country's most respected psychiatrists, famous for helping dangerous patients recover from trauma. But behind closed doors, he secretly manipulates vulnerable minds into committing violent crimes on his behalf. When the FBI notices that several unrelated murder suspects all share the same therapist, they begin investigating the doctor whose greatest weapon is not violence - but psychological control. As former patients begin remembering terrifying details from their sessions, the line between victim and killer starts to disappear.