The protagonist is awoken from an extra long nap and proceeds to murder everyone involved in waking her, truly the most relateable of anime. But for real, this is like a old fashioned slasher movie al la Friday the 13th, Nightmare on elm st, or Halloween, don't go into this too seriously or expect anything ground breaking, and much like slasher movies you hit all of those character tropes, the only thing unique to this from a slasher flick is the "monster" which i won't go into detail with. For being a stand alone movie that's only around two hours long I would say it's worththe time investment and it would be even better to watch with friends.