Maria and Karl Lang are the singing duo of Vienna. Maria is very flirtatious and Karl very jealous. Karl decides to masquerade as a Russian guardsman and attempts to make Maria flirt with him - to test her loyalty to him - as the Russian, Karl makes a vigorous attempt to seduce Maria. For a moment she accepts then rejects. Karl is left in turmoil...

Genres

Cast

Nelson Eddy

Karl Lang

Nigel Bruce

Bernard Fischer

Florence Bates

Madame Helene

Nydia Westman

Liesel - Maid

Max Barwyn

Anton

Charles Judels

Klementov

Louis Adlon

Sig Arno

Emile, Voice Coach

Leon Belasco

Waiter at the Double Eagle

Maurice Cass

Flute Player

Yvette Duguay

Child Singer in 'Seek the Spy' Sequence

Betty Jane Graham

Autograph Seeker