Balalaika.

In 1914 Tsarist Russia, Prince Peter Karagin (Nelson Eddy) is a captain of the Cossack Guards, riding home from manoeuvres to an evening of wine, women and song at St. Petersburg's Cafe Balalaika. Masquerading as a poor music student, Karagin insinuates himself into Lydia's family and circle of musician friends, unaware that they are dedicated revolutionaries. He discovers his larcenous orderly, Nikki Poppov (Charles Ruggles), courting the Marakovs' maid, Masha (Joyce Compton) Later learns of Lydia's political beliefs when she