In my opinion, Cagney is excellent in this movie, as is Richard Conte. The only fault I can really find with this movie, is that the characters were not really "fleshed out" enough. But the entire movie is suspenseful, your interest will not wane, and even if it does, the ending is worth sitting through the entire picture for.
If you are like me, and love WWII era spy films, then check out this film. You won't be disappointed.
If you are like me, and love WWII era spy films, then check out this film. You won't be disappointed.