Ten strangers are summoned to a remote island and while they are waiting for the mysterious host to appear, a recording levels serious accusations at each of the guests. Soon they start being murdered, one by one. As the survivors try to keep their wits, they reach a disturbing conclusion: one of them must be the killer.
Read the novel. That's the main point I'm trying to make here, as the film just doesn't do it justice. Agatha Christie's expertly-written, suspenseful, and, at times, downright frightening novel is a great read that I highly recommend. But too many things are messed with in the movie. Two main examples are: names of characters are randomly changed for apparently no reason, and the ending isn't even the same as the novel. I don't know why they bothered to keep the same name for the movie, as their contrived ending is no longer in keeping with the title. One positive thing I can say is that it has a good cast, and Walter Huston really stands out, but it's just not enough to save the movie, in my opinion. Would I recommend? No. Just read the novel.