ThedayafterProfessorSilverlake,consultantneurologistattheDartmouthLondonhospital,hasrailedatthreepatientsforsmokinganddrinkingonthepremises,allthreearefounddead.Silverlake,apparentlythelastdoctortovisittheward,latergoesberserkwitharifleandiskilledbypolicesnipers.Thewardsnightnurseisalsofounddead.Nikkiisdeeplyupsetathavingtoperformanautopsyonalittlegirlwhowasmurdered,apparentlybyJasonBodle,onwhomSilverlakeonceperformedlife-savingsurgery,andwondersiftheprofessorallowedhimselftobeshotoutofremorse.WhilstBodleiscommittedasunfittoplead,Silverlakesdaughter,Naomi,asksNikkitohelpclearherfathersnameofmurder.