HansAlbersandHeinzRühmannplaytwoconfidencetricksters.Theymanagetostopanighttrainfornefariouspurposes,andimpersonateSherlockHolmesandDrWatson.RomanticinvolvementwithtwoyoungBritishfemaletravelersensues,buttheplotdeepensintothedisappearanceofrareMauritiuspostagestampswhichtheyundertaketorecover,intheirroleasHolmesandWatson...
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