Gaby Rodgers

A doomed female hitchhiker pulls Mike Hammer into a deadly whirlpool of intrigue, revolving around a mysterious "great whatsit." (imdb)

Marty is a shipping clerk in the garment district and a wise guy trying to cut corners and get by on angles, and not very good at it. He meets Helen and decides to change his ways, but lack of patience in slow-progress jobs leads him to become involved with a neighborhood gang. (imdb)