Dr. Bill Remsen, a fashionable New York singing physician, poses as a policeman to save to save his best friend’s job Officer Lawrence O’Roon. He quickly finds out that a policeman’s lot is not a happy one when he finds his assignment is to serve as the personal bodyguard of the quirky socialite Mrs. Lorelei Dodge-Blodgett. But duty blends pleasantly with love when Mrs. Dodge-Blodgett orders him to guard Judy Marlowe, her pretty niece who wants to runaway with a gangster. But music has charm, even for a spoiled rich girl, and after a few inoculations of Dr. Remsen’s crooning, Judy decides to engage her bodyguard on a lifetime contract.
Jacqueline, a London gutter-snipe is “befriended” by Marius Andreani, a diplomat known for being a rounder with the ladies, but he goes pure with Jacqueline, resolved to help her to the heights of Terpsichore, for which she has a talent. But the friend of his, an elderly benefactor who secretly advanced the funds, through a priest, makes a play for her while she is climbing the ladder to success. He also has Marius appointed to a diplomatic post in Shanghai.
Marya is married to medical student Victor Sablin, who finds it impossible to deal with military life when he is inducted into the Russian army during World War I. When her husband is sentenced to death by firing squad due to his insubordination, Marya offers herself to General Gregori Platoff in order to save him. When the two unexpectedly fall in love, Victor — not caring that his life has been spared — threatens to kill his rival.
A varied group of immigrants head for the USA aboard S.S. Mauronia, including Russians Sascha, Mischa, Toscha, and Olga. Sascha has fallen for Scots lassie Heather; Olga is courted by Chris Jansen, valet of first class passenger Larry Beaumont. Heather catches Larry’s eye, to the discomfiture of Larry’s other flame Diana. On arrival, Heather has immigration trouble, and a variety of complications ensue…
A criminal has plastic surgery done to change his identity. However, during the operation, he loses his memory; when he comes to after the surgery, he has a change of heart and decides to help people by becoming a doctor.
Ludivine Jarisse is a young woman who lives a contented but unexciting life in the country. One day, she is visited by Roberte, an old friend who has made a career for herself as an actress at a Paris music hall, L’Empyrée. Roberte intends to take a break and invites her friend to take her place. Ludivine readily accepts, and soon becomes a musical hall diva under the name Divine, although she is at first reluctant to expose herself in the revealing costumes she is given. One of her colleagues attempts to take advantage of her naivety, but when she resists, he implicates her in a drugs trafficking affair.
A young and unexperienced music student is courted by a famous pianist, but just when she is about to fall for him, the pianist is fatally shot by an unknown woman. At the court trial, the woman finally tells her own story and the reason for the crime she committed, and a complex family tragedy is unveiled…
There can never be Too Much Harmony in a Bing Crosby picture, not even in a bucolic backstage musical like this. Crosby plays Eddie Bronson, a big-time singing star stranded in a one-horse town. Refusing to let any grass grow under his feet, Eddie combs through the local talent, discovering comedians Benny Day and Johnny Dixon and aspiring actress Ruth Brown. He brings his new protegees with him to Broadway, where Ruth becomes a huge success in spite of the machinations of prima donna Lucille Watson.