《雾都疑案》是由范·强生,维拉·迈尔斯,西塞尔·帕克,帕特里夏·拉芬,莫瑞斯·德纳姆主演的一部悬疑片，VanJohnsonplaysablindAmericanwriterwhoisrentinganapartmentonBakerStreetwhileinLondonfortheopeningofhisnewplay.Afterarowwithhisformerfiancée(VeraMiles),hedecampstothelocalpubtodrownhisself-pitywithadrink.There,hisacutehearingpicksuphushedsnatchesofconversationfromthenextbooth.Convincedthatakidnapplotisintheoffing,herushestothepolice,whoarepolitebutrefusetobelievehim.However,JohnsonknowswhatheheardistrueandengagesthehelpofVeraandCecilParker,hissecretary,tofindthekidnappersandsavetheunknownvictim.Thisterrificsuspensefilmtakesinterestingchanceswiththegenre.Johnson’scharacterisastudyinfrustration,aportraitofamaninvestigatingsomethingheknowsexistsbutcannotsee.Thedirectionbuildstensionwellandissupportedbyafinemusicalbackgroundwhichheightensthemood.23PacestoBakerStreetwasoneofseveral20thCentury-FoxfilmsshotonlocationinLondontotakeadvantageofFox’s"frozenfunds"--moneyearnedbythestudioinEnglandwhichbylawcouldonlybespentinthatcountry.