2130. Robots have forced people out of their jobs; there is no longer a special need for ordinary citizens, so the elite is pursuing a policy of childlessness. But for those who have proven that they are useful to society, thanks to technological progress, enormous opportunities are open. People spend most of their lives in virtual reality. They work, relax and study in it. In the real world, the streets are sparsely populated and practically safe due to a well-functioning tracking system. The managers who are in every house, in every apartment, not only take care of the owners, but also record their every move. In this uniquely harmonious and orderly world, mysterious murders take place under the very nose of observers.