|Tom Ewell||Tom Miller|
|Jayne Mansfield||Jerri Jordan|
|Edmond O'Brien||Marty ``Fatso'' Murdock|
|Barry Gordon||Barry the paperboy|
Hefty hoodlum Marty ''Fats'' Murdock employs has-been agent Tom Miller to transform his girlfriend, Jerri Jordan, into a singing star because he trusts Tom not to make a pass at her. However, the more time Tom spends with the stunning blonde, the more smitten he becomes. His troubles multiply when he realizes that Jerri can't sing a note, is not in love with Murdock and wants to settle down with a nice man like himself.