While visiting London in 1911 to attend the crowning of King George V, a stuffy Carpathian nobleman (Laurence Olivier) surprisingly finds himself attracted to saucy American showgirl Elsie Marina (Marilyn Monroe) in this bright romantic comedy. But complications and political intrigue ensue as a plot to topple the Balkan throne comes to light. Sybil Thorndike shines as the off-her-trolley queen dowager.