When an employee at an illegal gambling den dies suspiciously, her sister, Nancy, looks into the situation and falls for Johnny O'Clock, a suave partner in the underground casino. Selfish and non-committal by nature, Johnny slowly begins to return Nancy's affection and decides to run away with her, but conflict within his business threatens their plans. As Johnny tries to distance himself from the casino, his shady past comes back to haunt him.
Dick Powell
as Johnny O'Clock
Evelyn Keyes
as Nancy Hobson
Lee J. Cobb
as Inspector Koch
Ellen Drew
as Nelle Marchettis
Nina Foch
as Harriet Hobson
Thomas Gomez
as Pete Marchettis
John Kellogg
as Charlie
Jim Bannon
as Chuck Blayden
Mabel Paige
as Slatternly Woman Tenant
Phil Brown
as Phil, Hotel Clerk
John Chard
You play very cute, and nasty! Johnny O'Clock has everything under control. He has a partnership in a thriving casino and all his little peccadilloes are at ease in his world. Then things start to go awry, his partnership with Marchettis comes under severe pressure on account of Mrs Marchettis' d...
CinemaSerf
I have to say I was quite disappointed with this. Dick Powell is the eponymous character, a casino manager who on the face of it is as hard as nails, but a little scratching under the surface reveals that he's actually quite a soft old chap. He's had an affair with the much younger wife (Ellen Drew)...