Happy Death Day (2017)
I'm pretty sure everyone who watched the trailer for this movie got the gist of the plot: it's Groundhog Day , but with murder. Of course, our lead - played by the film's absolute standout actor, Jessica Rothe - has never seen Groundhog Day and has apparently never heard of it, because it takes her an absurdly long time to try to be a better person. Instead, she spends a long time trying to solve her own murder by a weird person in a creepy baby mask. So her own murder happens again and again and again. Happy Death Day definitely has flashes of greatness. As a murder mystery, it is far more effective than as a horror movie. You really want to know whodunnit. They really do set up everyone as a suspect, and they do so in a way that actually kept me guessing. I kept reading real answers as red herrings and misleads as the real deal. The final resolve ended up being quite disappointing, but I think that's because as a movie lover, I kept wanting the killer to be bigger...