Pickpocket Skip takes advantage of a standing-room only New York subway train to jostle close to attractive female Candy and miraculously open her purse, feel around inside, retrieve her wallet and snap it shut unbeknownst to her. Just another day at the office for Skip who returns to his ramshackle, dock-side digs and surveys his booty of gold watches and ...  "What's this?" Tucked in Candy's wallet is a strip of film exposed with shots of printed formulas? Meantime Candy is being read the riot act by her ex-boyfriend for losing the film. Adding to the intrigue, neither Skip nor Candy know that their encounter on the train had been observed by undercover cops. And so the plot is set for a melange of interested parties out to secure that film, some at any cost. Skip and Candy's implausible but touching relationship and some sappy sentimentality from Thelma Ritter aside, it's a good movie with some great fight scenes. You'll be there at the end.