In a quiet English town, the Scottish amateur detective, Hercule Poirot, is enjoying a relaxing weekend at the mansion of an old friend, the mysterious owner of an estate. However, peace is quickly disrupted when an unusual murder occurs: a businessman is found dead after a strange accident in his own home, leading the police to conclude it was a mere mishap.
Despite the apparent simplicity of the case, Poirot is suspicious and begins to dig deeper, soon discovering that there is more than one reason to suspect foul play. As he explores the life of the deceased and his relationships with the peculiar members of his family, dark secrets and old grudges are revealed. The clues point to poisoning, and each of those involved seems to have a motive and an opportunity to carry out the murder.
As Poirot interrogates the suspects one by one, tensions rise, and the investigation turns into an exciting game of cat and mouse. With his keen intuition and ability to decipher human behavior, this ingenious detective will confront the manipulation and lies surrounding the crime. Ultimately, Poirot must uncover the truth before the real killer strikes again. The intrigue intensifies in a thriller that blends humor, mystery, and a touch of suspense, keeping the audience on the edge of their seats until the final resolution.