The action takes place in the late 1920s in Ukraine. The exposure of a counter-revolutionary agent who has infiltrated the Soviet scientific community. The film has survived without the 6th part.
B. Mikhaelis
Olha Patorzhynska
Antonin Pankryshev
Professor Patorzhynskyi
Serhii Minin
Professor Tsapko
M. Myurgit
Khrystyna
Evgeny Kokhanenko
Mykyta Kondratievych
Stepan Shahaida
Professor Hrabar
Solomon Lazurin
Writer
Georgiy Stabovoy
Director
Yakov Kulish
Director of Photography
Militsa Simashkevich
Art Direction
