The listeners / Anthony J. Quinn.

Detective Carla Herron is leading the investigation into the savage murder of a respected psychotherapist whose decapitated head has been found in a forest clearing. The crime scene is devoid of any leads but a patient at the nearby Deepwell psychiatric hospital has declared responsibility for the deed in an vividly detailed confession; even though his claim is demonstrably impossible. Dedicated and full of aspiration, Carla throws herself into the investigation. She discovers that several of the other patients on the ward have made similar confessions in the past year. Faced with secrecy, professional betrayals and cover-ups, she is soon stripped of any illusions about her capabilities. Ignoring the advice of her superiors, Herron delves into the hidden secrets of the hospital, embarking on a chilling trail through the bleak Scottish borders that winds perilously between hallucination, violent fantasy, all towards a final, deadly, twist.