"Actress Brio working in a cafe "The Happy Canary", does not suspect that her new acquaintances Brianski and Lugovec are Communists sent by an underground committee to fight the enemy's counter-intelligence."
Galina Kravchenko
as Mademoiselle Brio, variety show artist
Andrey Fayt
as Lugovets
Ada Vojtsik
as Lugovets's wife
Sergei Komarov
as Bryanskiy, underground Bolshevik
Yury Vasilchikov
as Adjutant for the chief of secret intelligence
Mikhail Doronin
as Chief of secret counterintelligence
Vladimir Kochetov
as French Bolshevik soldier
Vsevolod Pudovkin
as Illusionist
Aleksandr Chistyakov
as Worker
Aleksandr Zhutaev
as
N. Kopysov
Valentina Lopatina
Vladimir Tsoppi
as (uncredited)
Pyotr Yermolov
Director of Photography
Boris Frantsisson
Lev Kuleshov
Director
Boris Gusman
Writer
Anatoli Marienhof
Co-Director
Sergei Kozlovsky
Production Design
Moisey Aleynikov
Producer