The owner of a drive-in diner is pulled into a plot to retrieve some looted gold, buried in Germany before the end of the war. Little does he know this plan is just a ruse to bring him back to Germany, where he is wanted by police for a crime committed there during wartime.
There's a lot of plot packed into this dense little thriller, with plenty of twists and turns to keep you guessing even after you think you've got it figured out, although it does get a bit far-fetched at times. The detectives posing as brother and sister stretch credibility with how close they come to blowing their cover and risk jeopardizing this elaborate mission over and over again, though Frank Lovejoy is suitably gullible as the subject of their investigation.