Interesting in terms of being one of the first heist and casino robbery films, and the fact that Scorsese's Casino was influenced by it, but I don't see any reason why even crime enthusiasts would have to watch this. Noir-ish, but leans more towards poorly scripted drama. Keith's performance is great.
As much as I like to sound different, the reviews below really some up a film that was incapable of living up to its great title. If only they had studied "Five Graves to Cairo" or "Seven Men From Now" to learn the ways of matching an intriguing film to an equally intriguing number title. See it only for Brian Keith's anguished vet with severe PTSD and nothing else. Then see "Nightfall" to see him in a better film.