A gangster is unable to go straight after returning home from prison.

Lawyer Joe Morse wants to consolidate all the small-time numbers racket operators into one big powerful operation. But his elder brother Leo is one of these small-time operators who wants to stay that way, preferring not to deal with the gangsters who dominate the big-time.

Zack Homer takes over managing the barbershop after Joe is killed for trying to rip off his "investor", Mr. Lovejoy. All Zack wants to do is run a traditional barbershop giving traditional haircuts, but modern styles have passed him by and business is slow. One evening, Mr. Lovejoy shows up to offer Zack the same deal he gave to Joe. It could turn his business around, but what will he have to give in return?

The policy-racket reaches it lean, bony fingers into the ivy-towers of a large university and the underworld trying to “beat the numbers-racket” with applied mathematics. One of the professors, Tom Barry is murdered in the Dean’s office.