An American reporter smuggling news out of Soviet Moscow is blackmailed into helping a beautiful Communist leave the country.

A German-language film loosely based on the 1883 operetta Eine Nacht in Venedig (A Night in Venice) by Johann Strauss II. The film was also made into separate Hungarian-language version Egy éj Velencében based on the same screenplay. The two versions were shot simultaneously. The Hungarian version was co-directed by Wiene and Géza von Cziffra and used a separate cast of Hungarian actors. From Wikipedia.

A Hungarian-language film loosely based on the 1883 operetta Eine Nacht in Venedig (A Night in Venice) by Johann Strauss II. The film was shot simultaneously while making the German film A Night in Venice (1934). The Hungarian version was co-directed by Robert Wiene and Géza von Cziffra and used a separate cast of Hungarian actors. From Wikipedia.