Broadway partners Vicky Lane and Dan Christy have a tiff over Christy's womanizing. Jealous Vicky takes up with her old flame and former dance partner, Victor Price, and Dan's career takes a nosedive. In hopes of rekindling their romance and getting Vicky back on the boards with him, Dan follows her to a ritzy resort in the Canadian Rockies, where she and Victor are about to open their new act. But things get complicated when Dan wakes after a bender to find that he's hired an outlandish Latin secretary, Rosita Murphy, which makes Vicky think he's just up to his old tricks again.

Katharine Hilliard, mousy dean of a stuffy music school, meets and is insulted by swing band leader Barry Clayton on a train. To "show" him she takes a friend's advice, removes her glasses, and puts on a designer gown. Naturally, she becomes gorgeous. Soon, both Barry and crooner Jimmy Hale are after her, and she finds herself in the midst of triangles and misunderstandings.

A young Irishwoman comes to the United States to live and work with her mother as a cleaning lady at Carnegie Hall. She becomes attached to the place as the people she meets there gradually shape her life. The film also includes a variety of performances from some of the foremost musical artists of the times: conductors Bruno Walter & Leopold Stokowski, solists Arthur Rubinstein & Jascha Haifetz, singers Lily Pons & Jan Peerce and bandleader Vaughn Monroe among many others.