Doctor of psychology, нейронаук and right, professor of University of New Mexico Kent of Кил tells about the long-term work with psychopaths - from pitiless serial killers that he met behind bars, to the children, the alarm signals of this future heavy disorder showed up in whose behavior and character traits. Personal history of doctor Кила combines with a clear and popular narration about the newest data of science, allowing to glance in surprizing, but yet the small unriddled world of stranger reason and thoughtful about a role that all of it can play in life of society and ordinary man.