Major Palgrave, an idiosyncratic but charming mystery writer, reveals to Miss Marple that one of the guests at a luxurious Caribbean resort they're staying at is a Bluebeard-type wife murderer. Unfortunately, the Major succumbs to an apparently accidental overdose of alcohol and blood pressure medication before revealing the killer's identity. When it's 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.
In the backwoods of Ontario lies a town called Kinmount. This little hamlet of only a few hundred residents no longer has a gas station or a school; however, thanks to the singular vision of local septuagenarian Keith Stata, what it does boast is a five-screen cinema palace and memorabilia museum—one that welcomes upwards of 50,000 visitors every summer.
Follows the horrific event that has captivated the public's attention for almost 50 years, as well as a more comprehensive narrative about Los Angeles, the American dream, and the situations in which justice might or not be effective.