Nicky Nelson is a fast-talking sideshow barker with a wax-and-alive concession on Atlantic City's boardwalk. Even with the band of his friend, struggling musician Gene Krupa, playing on the sidewalk to attract the customers, "The Living Corpse" and other low-rent acts aren't enough to lure the seen-it-all boardwalk strollers, and the landlord closes the show in lieu of never-paid rent. Nicky, always promoting, goes to Stephen Hanratty, head of the pier's Dance Pavilion, to plug Krupa's band as an attraction, but Hanratty won't even listen to them. But, while there, he meets singer Lily Racquel, who knows he is a phoney but might have the ability to to talk a radio-station manager into giving her an audition. She gives him a ring to help finance the project; he promptly loses it in a crap-game.

Nicky es un buscavidas de poca monta, con un grupo en la calle que toca jazz, hasta que el propietario del lugar les echa por no pagar el alquiler. Después, Nicky conoce a una cantante prometedora, quien le convence de hablar con el director de una emisora de radio para promocionarla.