A Caribbean Mystery (1983)

Aging Major Palgrave an idiosyncratic but charming mystery writer reveals to Miss Jane Marple that one of the guests at a luxurious Caribbean resort theyre staying at is a Bluebeardtype wife murderer Unfortunately the Major succumbs to an apparently accidental overdose of alcohol and blood pressure medication before revealing the killers identity When its discovered that the medicine belonged to another guest and the revealing photograph the Major was carrying is missing Miss Marple realizes that the serial killer has struck again and more murders will follow