I'm afraid that I didn't like this movie very much. Apart from a few saving graces, it's nothing to write home about. J-horror has boomed for the last five-six years but the films themselves have on more than one account been repetitive and carbon copies of a previous success. This is one of them.Basically this is a supernatural slasher movie. The beginning is promising with chilling scenes from a morgue where a dead girl has her eyes graphically sewn together, but soon after opens them. However, after that, it's quickly downhill for this flick.To be kind I will start with the things I like about "Gawi". On the plus side, the visuals are gaudy and the movie looks great for it's type. For those who like their horror movies gory there are a few nicely executed (no pun intended) murder scenes. We also get a few good suspense sequences/set-pieces.However, there are quite a few drawbacks also...First of all, and my major complaint about this movie, is that the plot skips and jumps forwards and backwards in time with an alarming intensity. Usually that's not a problem for me, but here, where the students look exactly the same no matter what age they are, I was confused on more than one occasion.The performances are okay I guess (a little hard to tell when you don't know the language), but seem a little stiff. And for a horror movie, I don't think it was scary enough. For a while I was quite bored actually.Being a fan of giallo movies, I was expecting quite a lot from "Nightmare", but unfortunately I was quite disappointed.