"Happy" MacDonald and his unfaithful wife own a Prohibition era night club. On this eventful night, he is threatened by bootleggers, and the club's star dancer falls in love with a young socialite who drinks to forget a personal tragedy, among other incidents.

Bing Bangs (Crosby) is a salesman for "Magic" washing machines and his demonstration of the machine at the beginning of the film results in disaster. Crosby later gains a transfer from Hoboken to California and he drives his wife Ethel and her Uncle Joe (who dislikes Bing) in an open car on the journey having many adventures en route. Uncle Joe presses Ethel to divorce Bing and marry a more desirable suitor called Percy Howard. Ethel, Joe and Percy are dining in a California night club when the announcer refers to the sponsor, the Magic Washing Machine Company and introduces their singer. It is Crosby and he sings "Just One More Chance" and he and Ethel reunite.

Wild girls at a college pay more attention to parties than their classes. But when one party girl, Stella Ames, goes too far at a local bar and gets in trouble, her professor has to rescue her. Gossip linking the two escalates until Stella proves she is decent by shielding an innocent girl and winning the professor's respect.

College hero Charles Stanton fails miserably as an insurance agent; so he becomes a lifeguard, saves an injured swimmer and is rewarded for his valor.