To my recollection, I have not read an Agatha Christie mystery before this one. Given she was a prolific writer, knowing which of her books to read, which are better than the rest, is a worthwhile endeavor. Fortunately, others have read all of Christie's books, and I can use their wisdom to curate my reading list.
This book tops many of Christie's must-read books lists. It is the highest rated Poirot books, and the highest rated Christie mystery book, so, rather than skipping to the end, I started at the top.
And read this one.
I had the advantage of not having read this book before and not having seen the movie. I loved the ending. Well, not the ending ending, but the big reveal. Wow, just wow. I suspect if I had read the other Poirot books, I would have recognized him when he was introduced. I didn't, so even that small reveal was fun for me.
Basic plot: small(-ish) town doctor receives a call in the middle of the night that a friend / patient / big name in town is dead, and rushes to find, yes, indeed, he is not only dead, but also obviously murdered. He then works with the local police and, when invited, Poirot to discover who the murderer. It could be any number of persons in the dead man's household, based on given testimonies, and wow, everyone has something to hide. Society and shame has a way of doing that to us.
The glimpses into a past society was fun, too.
While normally I'd say, "I strongly recommend one read an Agatha Christie mystery," regardless of which one, I agree with all those who have read many if not all of her books, this one is great. Strongly recommended.