I give this 2.5 stars. This movie is the mid of movies. You know those movies you've watched that you can't badmouth or praise about? This is that kind of a movie. It's not very entertaining, it's just a little entertaining. The mystery isn't a great mystery, it's an okay one. One complaint I will make is that the killer's connection wasn't clear. I liked Saoirse Ronan but Sam Rockwell was mid. If you liked Knives Out and that genre of whodunit, you might like this. I didn't like Knives Out very much so this makes sense.
Also, the cinematography looked a bit inspired, reminded me of The Grand Budapest Hotel a bit, maybe it's because Ronan's in them both.