John Wilkins meets a beautiful, irresistible girl, and his world is turned upside down. Looking at his wife, and thinking of the girl, everything turns red before his eyes the colour of murder. But did he really commit the heinous crime he was accused of? Told innovatively in two parts: the psychiatric assessment of Wilkins and the trial for suspected murder on the Brighton seafront, this award-winning crime novel from 1957 is a gripping examination of the psychology of murder and the nature of justice, unravelling the mystery by showing the events leading up to a murder, and the psychiatric evaluation which follows.