Dr. Adrian Chase is a burned-out Boston psychologist whose life is upended when a stranger on a ledge claims Adrian has been manipulating him for months through cryptic text messages. When the stalker invades his home and leaves a chilling declaration of war, Adrian discovers the culprit is a former protégé—a brilliant, unstable man who has turned Adrian's own theories about psychological manipulation into weapons. Now Adrian must confront whether he's the healer or the destroyed in a deadly game where the patient becomes the therapist, and the mind is the only battlefield.
