This novel is highly autobiographical. Many of the prisoners (zeks) are technicians or academics who have been arrested under Article 58 of the RSFSR Penal Code in Joseph Stalin's purges following the Second World War. Unlike inhabitants of other Gulag labor camps, the sharashka zeks were adequately fed and enjoyed good working conditions; however, if they found disfavor with the authorities, they could be instantly shipped to Siberia.