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.