Paradise on Earth has finally been built: robotic megacities have everything humanity needs for a comfortable and carefree life. The townspeople cannot imagine that they can live any other way. Yar Sladin doesn’t think about it either. But a meeting with a strange stranger ruins his usual way of life - Yar learns that mysterious and deadly demons live side by side with people in paradise. Pursued by invisible killers, he flees beyond the boundaries of his native metropolis into the wild world of the suburbs, where there is a continuous struggle for existence. Yar has yet to reveal the terrible secret of the demons of paradise.