Soviet spy Ladeynikov learns that in one of the pharmaceutical centers in a small resort town works a former German war criminal Dr. Hass, who is finishing the creation of a deadly chemical gas RH development of which he began during WW2 experimenting on war prisoners. Since Ladeynikov doesn't know Dr. Hass's appearance, Soviet intelligence recruits an actor, Ivan Savushkin, who during the war escaped from a prison camp where Hass was testing his gas. Together they must identify and stop him before he finishes and unleashes his weapon of mass destruction.
Donatas Banionis
Rolan Bykov
Bruno Frejndlikh
Gennadiy Yukhtin
Jüri Järvet
Sergei Kurilov
Ants Eskola
Einari Koppel
Vladimir Erenberg
Svetlana Korkoshko
Leonhard Merzin
Anda Zaice
Mykola Zasieiev-Rudenko
Mikhail Ivanov
Stepan Krylov
Heino Mandri
Vadim Medvedev
Vytautas Tomkus
Augustas Baltrušaitis
Ants Lauter