 Special prosecutor John Conroy hopes to combat organized crime in his city, and appoints his cop father Matt as chief investigator. John doesn t understand why Matt is reluctant, but cynical reporter Jerry McKibbon thinks he knows: he s seen Matt with mob lieutenant Harrigan. Jerry s friendship for John is tested by the question of what to do about Matt, and by his attraction to John s girl Amanda. Meanwhile, the threatened racketeers adopt increasingly violent means of defense.