About the book: 2017 / Leningrad, 1930. The machine of terror is already working at full speed, the already imprisoned engineers have designed the Big House, where the St. Petersburg OGPU-NKVD will very soon move. Purges are already in full swing - in Smolny and in Public, at the Putilov Factory and in the Hermitage. But next to the great state evil, small crimes still exist: Soviet citizens do not stop stealing, being jealous and killing even in the shadow of the Big House under construction. Linking the rational with the irrational, translating the sticky horror into the language of the good old police protocol - is such a task possible for the most ordinary criminal investigator??