Twentyyearsago,oldMrs.Barlowwaskilledinherhomeat12,PimlicoSquareforherpricelessrubies.Themurderersearchedthewholehousewithoutfindingthem,thendisappeared.Thehousehasbeenemptysincethen,butnowPaulandBellaMallenmoveintotheapartment.BellaMallensuffersfromforgetfulnessandnervousness-atleastthatiswhatherhusbandtellsher.Anelderlyhorsewrangler,B.G.Roughworkedasapolicemantwentyyearsagoandstillrememberstheunsolvedcase.HenoticesthatMr.MallenlooksjustlikeLouisBarre,Mrs.Barlow'snephew.AndwhydoesMr.Mallensomysteriouslyleaveeverynightjusttogointotheapartmentnextdoor,nr.14
里卡尔多·斯卡马奇奥,马西米利亚诺·加洛,安娜贝拉·沃丽丝