Meet Claire Waters, a young, dedicated forensic psychiatrist with unnervingly personal insights into the criminal mind. Driven by her demons, Claire is drawn to those rare "untreatable" patients who seem to have no conscience or fear. But one shocking case could make or break her career - and it's waiting for her in the psychiatric wing of New York City's Rikers Island: Quimby, a deranged inmate who triggers something in Claire she'd rather not face.