1952. A senior police officer is not convinced of the guilt of a young man sentenced to hang for the savage murder of an elderly woman. So he seeks the help of his old friend and colleague, a certain celebrated but rather bored Belgian detective - Hercule Poirot.
In the respectable village of Broadhinny, Hercule Poirot has established several possible suspects of appropriate ages, as the murderer of the elderly woman.
Hercule Poirot is very excited because someone has tried to kill him - so he knows he's on the right track. However, there is someone else who, he fears, may become the next victim.
The chaos of Long Meadows provides Hercule Poirot with his final clue to unveiling the pitiless murderer. But there is also another surprise in store.