The film is based on documentary facts and tells the story of an officer in the Japanese General Staff who received the task under the name of Captain Rybnikov to infiltrate the military circles of St.Petersburg. It was exposed after the famous Tsushima battle of 1904, when Japan destroyed the entire Russian Far Eastern fleet.
Russian provincial town in the middle of the 1930s Stalin's Great Purge. Ivan Lapshin, the head of the local police, does what he has to do. And he does it well.
