Murder occurs when several of the most popular radio personalities of the '40s converge on a desert resort.

Evelyn Palmer, a débutante society girl who also is a property landlord, becomes interested in the plight of one of her tenants, a struggling band-leader, to the extent she becomes a hostess in a dance club, incognito, where the band plays, and soon is the band's singer.

Socialite Cathy Abbott is working in the chorus of a Broadway show instead of being enrolled at an exclusive girl's school as her parents think. When the show closes, she brings two of her chorus friends home with her. In addition to trying to make her friends acceptable to the snooty society of which her family is part, she is also being blackmailed by a rival.

Unscrupulous agent Rush Blake makes singing waiter Buddy Clayton a big radio star while Peggy Cornell, who has lost her own radio show, helps Buddy.

In this musical comedy, a crooked record producer uses his mob connections to force performers to do their stuff. The trouble really begins when the gangster's strong-arm tactics nearly cause a singer to lose his fiancée. A wide variety of entertainers appear including cowboy crooner Gene Autry, baseball hero Joe DiMaggio, and big band stars Cab Calloway, Ted Lewis, and the Kay Thompson Singers. Songs include "Mamma I Wanna Make Rhythm," "Manhattan Merry-Go-Round," "Heaven?," "I Owe You," and "It's Round-up Time in Reno."