A man (Charles Russell) accidentally kills his fiancée as he exits a train. Just as the train pulls out, he drops her body on the rear platform. No one saw him do it, but someone does see him at the otherwise deserted station: a mischievous, freckle-faced boy. Later, he's walking along a road when the town's newspaper editor stops and gives him a lift. The editor tells his passenger that a flood has washed out the bridge. For now, there's no way out of town, so he takes the stranger to a boarding house. Fate decrees that of all houses, this is the one where the boy lives. The boy thinks he recognizes the new boarder. The new boarder thinks it's time to get rid of the boy. And a sexy blonde (Mary Beth Hughes) living at the house thinks it's time to run off with a man she knows is a murderer.
"Inner Sanctum" is a stand-alone film based on the radio series of the same name. That program was also the basis for Universal's godawful movie series, starring Lon Chaney, Jr., that had ended just two years before. "Inner Sanctum" is nothing like those films and much better. The story is efficiently told with sharp dialogue, an excellent framing device and good performances. Everyone involved worked well within the constraints of a small budget; and the movie remains an entertaining thriller that fits snugly into the latterly-invented genre of Film Noir.
