Synopsis: Offered parole from Sing Sing in exchange for information about one of his old partners in crime, jewel thief Nick Bianco reluctantly cooperates with district attorney Louis D'Angelo, who's trying to take down violent murderer Tommy Udo. But when Udo goes free despite the district attorney's best efforts, Bianco and his wife, Nettie, are in the killer's sights, and he'll stop at nothing to settle the score.