简介：HarrietFarmerisattackedinwoodsonherwaytoelopewithboyfriendFinnRobsonandleftinacoma.Finnvanishesandayearlater,astheannualBishopwoodchesstournamentbegins,Harrietwakesupwithtemporaryamnesia.Thechessclubpresident,unpopularwriterEdwardStanningtonismurdered,hissoleheirbeinghisdippyauntVivian.BarnabylearnsthatStanningtonisthefatherofayoungchessprodigywhomhehasdisownedandwasouttodiscredithischessrival,AlanRobson,Finn'sfather,themillionairecreatorofacomputerchessgame.Furthermoreunhappily-marriedhotelierArthurPottswantedthevictimtoinvestinhisailingbusinessandwasrefused.AfterHarriet'sfatherisalsomurderedherkindlydoctor,LauraParr,andBarnabytakethegirltothewoodswhereshewasattackedtoseeifshecanrecalltheeventsofthepreviousyear.…