Knives Out is a mystery whodunit in the spirit of Agatha Cristie, but with quite a few twists, which is a given since it is from director Rian Johnson. As entertainment, it works really well, although I didn't find it totally believable and I predicted the twist ending. The movie also tries a little too hard to be a social commentary.
However, Rian Johnson shows that he can make a pretty entertaining movie.
Rating: A-. My initial thought was to give it a B+, but I did find the movie thoroughly entertaining. Knives Out has a 97% rating on Rotten Tomatoes.