I've been thinking about this movie a lot so I need to write a review. I consider myself someone who doesn't get scared easily, but not this time. This movie is actually scary I almost shit my pants (maybe because I watched it alone, in the dark, at 2 am..). Firstly, this movie is based on the abandoned mental hospital in SK that had to close down because of economics, it's one of the scariest places in SK. The movie did a pretty good story out of this hospital, adding ghosts and things like patients commiting suicide, mad director etc.

Another thing I liked about this movie is the way they filmed it, and the cast. Even if they didn't film it in the actual hospital, they did a good job recreating the place, although they added that bath tub and laboratory room. They filmed this as a documentary, everyone filming with a gopro. This makes it seem more realistic like it's actually happening. Another thing that made this more realistic is that all of the actors are new faces, they aint famous or have acted in anything, yet they acted REALLY good for newbies. They all used their real names in the movie too, so new faces makes it seem like it's again, actually happening irl rather than having like Lee Jong Suk, it'd be weird right :'D

Scary things doesn't happen until like, the last 15 minutes, however the jumpscares are real people, I seriously skipped a lot of scenes, otherwise I wouldn't be able to sleep (actually I slept at 8 am finally after watching numerous of videos of people visiting the hospital lol).

Rewatch value is low, because I rewatched it, and honestly it didn't feel the same as the first time, since now I already know everything. As for music, there were no music LOL.