GeorgeHarveyBoneisacomposerinearly20thcenturyLondon,whoisunderstressbecauseheiswritingapianoconcerto.Duetothisstress,hegetsblackoutswheneverhehearsdissonances.Whenhefindshimselfaftertheblackoutinadifferentquarterofthetown,hereturnshome,toreadinthepaperthatsomebodyinthatquarterwasmurdered.Askinghelpfromadoctor...