一美国舞女冒充俄国公爵夫人以至闹出种种笑话。An American dancer on a tour of pre-Boleshevik Russia falls for a young army officer, and the feeling is mutual. However, the officer's father is the Grand Duke of Russia, and he has designs on the girl himself--not letting a minor detail like his already being married bother him--and refuses to let his son marry her. Complications ensue.