The ruthless Solly Caspar is fighting to retain control of Bay City's criminal activities when Frank Jansen (Kent Taylor), an honest man and mayoral hopeful, begins a strong anti-crime campaign. Caspar tasks his right-hand man Ben Grace to dig up some dirt on the candidate and ruin his chances of election. Meanwhile, Dorothy Lyons is paroled from prison in custody of her sister June, secretary to Frank, Ben sees this as a way to smear Jansen's campaign. But after falling out with Caspar, Ben tries to help June, who he begins to fall for. Sexy Dorothy also has a yen for Ben. June is reluctantly forced to go along with Ben's schemes, but there may be more to these than meets the eye...