Fred Astaire and Ginger Rogers star in this classic musical romance of two lovers kept apart by a case of mistaken identity. Vacationing in London, Dale Tremont (Rogers) is awakened by Jerry Travers (Astaire) working out his new dance routine in the hotel room above hers. Although the two feel an instant attraction, Dale thinks that Jerry is married to her friend Madge (Helen Broderick). When Jerry then pursues Dale romantically, she is shocked--believing him a cad--yet she can't stop herself from falling in love with a seemingly married man. But when the couple meet again in Venice, all misunderstandings are resolved as Dale and Jerry dance together under the moonlight, cheek to cheek.