A story about love between famous composer Johann Strauss and Russian beauty Olga.

Silva Varescu, a self-sufficient and professionally successful cabaret performer from Budapest, is about to embark on a tour of America. Three of her aristocratic admirers, named Edwin, Feri and Boni, prefer her to stay. Edwin, unaware that his parents have already arranged a marriage for him back home in Vienna, orders a notary to prepare a promissory note of his expected marriage to Silva within ten weeks.