Great Film!
Just watched this movie, and it was as good if not better than many of the better know works in this genre. Don Defore is fantastic, Scott is pure evil and the sad sack Dan Duryea makes you feel sorry for him - you know all along what's going to become of him. I saw it right after watching 'D.O.A.' (1950) with Edmond O'Brien, but I think 'Too Late...' is more even, more engaging and has better one liners. I especially liked "You're drunk!" "Takes one to spot one..."
Oh, the Colt or Smith & Wesson lipstick line was great too.
If you love film noir, you gotta see this one, a minor 'major' classic!
There is a way which seemeth right unto a man, but the end thereof are the ways of death.