The Crown Prince Florizel of Corovia (Robert Montgomery) is more interested in frivolous activities, often with the opposite sex, adventure and extravagance than any real royal duties, even in these difficult times when anarchists are trying to overthrow the kingdom and turn it into a republic. In such threats, there have even been attempts on his life. Despite these difficulties, Florizel is not disappointed in learning that Princess Brenda of Irania has declined entering into an arranged marriage with him, she who he has not seen since they were children (his memories of her not pleasant ones), and the marriage which was supposed to strengthen both their kingdoms, in such royal duties, from these threats. With Colonel Geraldine (Frank Morgan), a long time servant of Corovia, in tow as chaperone to protect him and prevent any scandal from his regular type of activities, the King sends Florizel to London incognito (as Mr. Godall) for a month to contemplate his future as king while negotiations with Irania continue and are expected to be completed by the time of their return. Still focusing on his frivolous life despite the King's want, Florizel, in coming to her rescue, falls under the spell of a mysterious woman he meets on board the sailing to England. He ends up losing track of her upon arriving in London despite his want to get to know her better, but by happenstance runs into her--learning her name to be Miss Vandeleur (Rosalind Russell)--at a private club, his attendance there in that search for adventure seeing as to the club's rather unusual reason for being. As he learns Miss Vandeleur's reason for being in London, he may run into the unknown threat to his life in the process.
