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.
as Mademoiselle Brio, variety show artist
as Lugovets
as Lugovets's wife
as Bryanskiy, underground Bolshevik
as Adjutant for the chief of secret intelligence
as Chief of secret counterintelligence
as French Bolshevik soldier
as Illusionist
as Worker
as (uncredited)
