Straight up one of the best mystery games I've ever played. The production is ridiculous, and I mean that as praise—the music, voice acting, animation and witty dialogue all come together to form a delightful little game. Me and some friends streamed this one together, and had a grand old time trying to piece the mystery together as a group. The characters are all fun to talk to, and the sheer amount of flavor text with each one is such a treat. No bad puzzles, either, though the clock face one could be a bit agonizing.
The very final scene with the culprit fell a little flat for me, but the build to that moment is top-notch. I won't spoil it, but the "oh, shit" moment when it all comes together? Absolutely amazing.