It is a society that is, officially, a haven for its citizens. Superior to the decadent West, the Soviet Union under Stalin strives to be a paradise for its workers, providing for all their needs: education, health care, and security. In exchange, all that is required is their hard work, and their loyalty to and faith in the Soviet State. Leo Demidov knows this better than most. A rising, prominent officer in the state security force, he is a former war hero whose only ambition is to serve his country. To defend this workers' paradise, and to guarantee a secure life for his parents and his wife, Raisa, Leo has spent his career suppressing ideological crimes against the state-crimes of thought, of disloyalty, and of counterrevolution. But then the impossible happens. A serial killer is on the loose inside the workers' paradise. At the same time, Leo finds himself demoted and denounced by his enemies, and all but sentenced to death. To save his life and the lives of his family, he must confront the vast resources and reach of the security forces-to stop a criminal that the state won't even admit exists.