
When several of Johnny Sixty's juke box machines and his ace mechanic murdered, the police focus on Sixty's business rival, Wallets Mack. Mack insists he's innocent and hires Mike to prove it. Mike's investigation turns up blackmail, an invalid wife and a pretty singer with dreams of the big time.
When an innocent man is accused of murder, Mike is hired to find the real killer of a photographer who ran a phony modelling school and dabbled in blackmail on the side.