HenryFallon,whoiswheelchairboundandissufferingfromaneurologicaldisorder,apparentlycommitssuicideandMorsehasmixedfeelingsworkingonthiscaseashewasonceengagedtothedeadman'swife,SusanFallonThebodywasfoundbyhissoninlawPeterRhodes,alocalantiquesdealerandthevictim'swifewasinLondonWhenFallon'sdoctoradvisesMorsethatHenrydidn'thavethephysicalcapabilitytoholdaguntohishead,thepolicerealizetheymayhaveamurderontheirhandsWhenthepolicearetoldthatthebusinessarrangementbetweenFallonandRhodeshadfallenapart,theyalsohaveasuspectLewisisconcernedthatMorseistooclosetoMrsFallontobeobjectivebutintheend,theperpetratorsareidentified