Razvyazka (1970)

A man who worked as a liaison for foreign intelligence surrendered to the Leningrad State Security Administration, but he never saw his accomplices, and now the security officers have to find them with a minimum of data. A certain Sotnikov lives in a dacha suburb of Leningrad. He married and got a job as a director of a cinema. Soon, counterintelligence officers Andrey Baturin and Igor Krasnyukov are already conducting a complex case with a murder and several suspects. Young operatives approach a foreign intelligence resident.