A well acted, above average film noir from the late 1940's, "Johnny O'Clock" stars Dick Powell as the title character. His "juvenile" roles in such films as "42nd Street" long behind him, Powell's Johnny is a tough gambling-house operator, who is involved with a mobster named Guido and a crooked cop named Blayden. When Lee J. Cobb as Inspector Koch arrives to investigate the murder of a gambler, the plot thickens. A vulnerable Nina Foch plays a hat-check girl in Johnny's establishment, who is involved with Blayden. However, Blayden disappears, and Foch evidently commits suicide. Convinced of Blayden's involvement, both Koch and Foch's sister, played by Evelyn Keyes, pursue the missing cop. A blood-stained coat fished from the water, an expensive engraved watch, a bright new Mexican coin; the clues surface along with the betrayal and duplicity in Robert Rossen's taut screenplay, which was adapted from a story by Milton Holmes.

The sharp tough dialog is delivered by pros, with Powell, Cobb, and Keyes especially good. However, lovely Ellen Drew is a standout as Nelle, the alcoholic moll, who is Guido's wife, but harbors a history with and a persistent yen for Johnny; watching her expressions, even when silently in the background, is a lesson in film acting. Film buffs will spot a young Jeff Chandler as Turk, one of Guido's boys, in a small uncredited part. Nicely directed by Robert Rossen, the film features shadowy black and white photography by Burnett Guffey and a good score by George Duning. While not film noir of the first caliber, "Johnny O'CLock" is nevertheless an entertaining entry in the genre, and watching Powell during his tough-guy period is always a pleasure.