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简介：AmbitiousHelenChernin(IdaLupino)pusheshertalentedyoungersisterKatherine(JoanLeslie)intomarriagewithbrokendownsong-and-dancemanAlbertRunkel(JackCarson)sothatthetwowomencanleavethedirtysteeltownwheretheylive.Runkel'spartnerPaulCollins(DennisMorgan),however,seesthroughHelen'splan.Helencontinuesdrivinghersister'scareerandeventuallyKatherinebecomesastaronBroadway,whileRunkelandCollins'actflounders.SuccesssoongoestoKatherine'sheadandshebecomesafast-livingpartygirl.TimepassesandHelenandKatherinerunintoPaul,nowasuccessfulbandleader.HeandKatherinesoonfallinlove.ThetwosisterseventuallyhaveashowdownonopeningnightofKatherine'slatestshowwhenKatherinediscoversthatHelenisalsoinlovewithPaul.…