Crazy, stupid fun, filled with zombies, Yakuza, samurai, and more. Glad I finally got to see this one.
This is a great lesson in atmospheric horror. Nice, slow building tension with mysterious happenings. Frequent moments of "did you just see that thing move?" and "Behind you, Harry Potter!!" spookiness. I jumped a few times and had goosebumps at least once. I know it was based on a stage play per other people's posts, and I'd love to see it. All in all, an excellent return of Hammer Studios.