The original title was "Hidden Enemy" - playing on the fact that the western spy Sotnikov, played by
Petr Shelokhonov, was shown infiltrating the Soviet rank and file while he wore a Soviet uniform. This version of the film was banned and destroyed as anti-Soviet. Then the working title was changed to "Amnistii ne podlezhit" ("Not Eligible for Amnesty") but it was banned and destroyed as well.