When a retired spy dies under suspicious circumstances, Miss Marple must determine which of four potential suspects is responsible for the crime. Sir Henry Clithering enlists the elderly sleuth to examine the evidence surrounding the man's fatal fall, which is quickly revealed to be a calculated murder rather than an accident. Miss Marple navigates the social dynamics and hidden motives of the four individuals present, applying her keen observation of human nature to identify the killer. The narrative unfolds through a concise, focused investigation that highlights the contrast between the seemingly quiet setting and the lethal intent of the culprit.

This short story is widely regarded as a quintessential example of the author’s ability to condense a complex mystery into a brief, impactful format. Readers frequently highlight the cleverness of the central puzzle and the efficiency with which Miss Marple dissects the motives of the four suspects. The narrative is often praised for its adherence to the classic whodunit structure while maintaining the charm of the St. Mary Mead setting. It serves as a focused entry point for those interested in the shorter works of the genre, demonstrating the author's mastery of character-driven detection.