This movie is weird one as you feel like you are at a murder mystery show you'd see at a venue like a hotel or something and that Aniston and Sandler are two members of the audience, like you except they've been roped in. The film keeps you guessing and has some cliches of the genre incorporated into it. The characters are quite likeable and some pretty funny. Critics have slammed this one as it's not a laugh a minute, but I don't think it was meant to be. I enjoyed it, is it Sandler's best? No. Is it his worst? Not by a long shot. Well worth a watch.
Review of Murder Mystery
