Suffused with dread and paranoia, this Fritz Lang (M) adaptation of a novel by Graham Greene (The Third Man) is a plunge into the eerie shadows of a world turned upside down by war. En route to London after being released from a mental institution, Stephen Neale (The Lost Weekend’s Ray Milland) stops at a seemingly innocent village fair, after which he finds himself caught in the web of a sinister underworld with possible Nazi connections.