A small radio station is saved of getting bankrupt by a backer, who invests money for a TV equipment, if the owner allows, that his dancing daughter Annabelle can dance and sing on the screen, but due to her voice, her singing had to be dubbed by the owner's girl friend Pat Abbott.But problems start, when the owner starts dating Annabelle.

Small radio station WPX is being forced out of business by bigger stations, and so manager Phil Harrison must renew the contract of the Farraday Trading Post, an antique and junk shop that is one of their most important accounts. Unfortunately, David Farraday, the nephew of Ferdinand, the eccentric owner of the trading post, persuades his uncle to cancel their account for economic reasons. Harrison takes general manager Charles Moore and two of his singers, the lovely Pat Abbott and her sister Judy, to the trading post, where the women distract David while Harrison convinces Ferdinand to trade his shop for ownership of the radio station. David is furious about the subterfuge and fires Pat and Judy for their part in it. Later, Ferdinand and David are settling into the big city when Charlie brings them the upsetting news that the big stations are installing commercial television equipment, and that WPX will have to do likewise if they are to remain competitive. David feels cheated once again, for he realizes that Harrison must have seen the upheaval coming and that is why he unloaded the station on Ferdinand. Things become even more complicated when Ferdinand unthinkingly buys television equipment with a ninety-day bank loan that uses the trading post as collateral, even though he no longer owns it. The new television station must make money quickly to save the Farradays from possible legal entanglements, and they begin broadcasting a live "trading post of the air" swap meet. When the show begins to affect the business of Emily Potter's department store, she agrees with the suggestion of her manager, Mr. Carter, to sponser the show. Because WPX desperately needs her money, David agrees to her terms, which are that her daughter Annabelle, who is a great dancer but a bad singer, sing on the show. David comes up with a scheme to keep the Potter money and their newfound audience by having Pat, with whom he is falling in love, sing from a hidden part of the stage while Annabelle performs and sings into a dead microphone. The show and Annabelle are a smash, but Pat grows bitter as David spends more time with his new star, while she is hidden further from the limelight. Annabelle mistakes David's attentions and, not realizing that he is just trying to keep her mother happy, announces their engagement. Judy pleads with Pat to break with David, but Pat refuses to renege on her commitment to the show. One night, though, Judy reveals the singing ruse during a show by turning on Annabelle's microphone and switching between it and Pat's. It appears that WPX is ruined, but the show has increased business so much for the department store that Emily hires Pat as the singer for a new show. David accuses Pat of double-crossing him, but she reveals that her contract with Emily stipulates that the show must be broadcast from WPX. Ferdinand outwits Harrison when he attempts to buy back the station, and all ends happily as Annabelle, who much prefers to dance than sing, becomes a featured dancer on the show, and David and Pat, Charlie and Judy, and Emily and Ferdinand declare their love for each other.