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