In the global empire of the future, the civilization of homo sapiens is under the total control of the authorities. Despite this, the people are satisfied and happy, peace and fun accompany a carefree person. You might think this is paradise. However, not everything is so smooth. The reader is immediately introduced to the Piranesi prison planet, where all those who have violated the law are referred to. The punishment procedure includes sterilization, for malicious violators - castration.