The Narrow Margin [Blu-ray]

The Narrow Margin is generally considered a "model" B picture; some film buffs go farther than that, labelling this 1952 RKO suspenser as the best low-budget studio production ever made. Nail-hard detective Walter Brown (Charles McGraw) is assigned to protect gangster's widow Mrs. Neall (Marie Windsor) as she rides the train from Chicago to LA, en route to testifying at a grand jury. There's no love lost between the ill-tempered Neall and Brown, especially since Brown's partner (Don Beddoe)...