In Agatha Christie's captivating mystery, Hercule Poirot is drawn into the peculiar death of the elderly and wealthy Miss Emily Arundell. Initially ruled an accident, Poirot becomes suspicious upon receiving a letter from Miss Arundell herself, written prior to her demise, expressing fears for her life. As he delves deeper, a complex web of family secrets, greed, and carefully orchestrated deception begins to unravel. With a silent terrier named Bob as an unlikely witness, Poirot must use all his deductive powers to unmask the true culprit and expose the sinister truth behind what was clearly no accident, but a cunningly planned murder.