MajorPalgrave,anidiosyncraticbutcharmingmysterywriter,revealstoMissMarplethatoneoftheguestsataluxuriousCaribbeanresortthey'restayingatisaBluebeard-typewifemurderer.Unfortunately,theMajorsuccumbstoanapparentlyaccidentaloverdoseofalcoholandbloodpressuremedicationbeforerevealingthekiller'sidentity.Whenit'sdiscoveredthatthemedicinebelongedtoanotherguestandtherevealingphotographtheMajorwascarryingismissing,MissMarplerealizesthattheserialkillerhasstruckagainandmoremurderswillfollow.
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