This is tough, muscular film noir delivered by a master of the genre, director Joseph Lewis, whose master touch in low budget mystery gave us the unforgettable "Gun Crazy." The camera work is excellent in this epic about a large city at night, when two obsessive men do battle for turf control, giving us a microscopic view of its fierce underbelly and the ferocious mobsters who tenaciously seek to control it.
Cornell Wilde is a tough, uncompromisingly honest cop who is belittle by his equally determined adversary, Richard Conte, for being so bright yet ending up with such a small paycheck at the end of the week. Wilde has two reasons for bringing down the cocky Conte, that earlier expressed of seeking to make the city a more decent place with the mobster's loss of influence. The other is that he holds a passionate love for the beautiful blonde controlled in such a tight vise by Conte that she attempts suicide. The blonde is Wilde's real life wife, Jean Wallace, and Wilde is determined to pull her away from the egomaniacally dominating Conte before she is destroyed.
For a large part of the film Conte laughs at Wilde, taunting him over his ineffectuality, telling him he is wasting his time attempting to put him away. This is largely a bluff, though, since he recognizes Wilde's zealousness and competence. At one point his henchmen kill a lovely young stripper going with the policeman, intending to terminate Wilde instead.
Wilde is able to crack the case when he learns about the existence of Conte's wife, thought to be dead, played by Helen Walker. When Wilde gets the goods on the mobster and is ready to arrest him Conte begs his adversary to kill him. Wilde will have none of it, telling Conte that he will instead be tried, convicted, and sent to prison, where he will be a man devoid of power. Wilde knows that this is a much sterner punishment to Conte than death by execution.