Richard Widmark is quite effective in this quickly paced espionage thriller. He's a petty thief whom we see lifting something from a woman's purse on a busy subway train. He's not the only one watching her, though, and as he makes his exit he narrowly avoids capture the police. Why are others watching this woman? Well it turns out that she is suspected of passing secrets to the communists and that the police reckon the purse purse contains evidence. Of course, "Skip" (Widmark) knows nothing of this but is soon working with the authorities to find "Candy" (Jean Peters), trace her compatriots and... read the rest.