|Franchot Tone||Emperor Franz Josef|
|Frieda Inescort||Princess Helena|
In this musical, Princess Helena is slated to marry her cousin Emperor Franz Josef even though she's in love with another man. Her sister Princess Elizabeth decides to follow her to Vienna in an attempt to sabotage the wedding, traveling incognito as a dressmaker. Unexpectedly, Princess Elizabeth and the Emperor fall in love. If Elizabeth's father intercedes and stands up to his obstinate wife, order may finally be restored to the royal family.