Who knows what's the trademark of almost all of the Asian horror movies? Yes, you're right: a ghost or a spirit shaped as a girl(or a woman) with her long, dark hair over the face. In small doses, at the right moment, usually associated with creepy sounds or eerie score, moving suddenly or with broken movements, those out-of-this-world presences have the power to scare to death the poor characters unfortunate enough to be in their path. Now, ladies and gentlemen, in "Bunshinsaba" you have the longest presence on-screen of the aforementioned long-haired female ghosts in the entire Asian horror history. If you have a better example, please let me know.
Now you think that will make this movie the scariest of them all? Errr...no. "Bunshinsaba" is a horror movie, no doubt about it. But, it's scare factor is average or even low. Despite some (very short) disturbing images, it's hard to be really terrified. No unsupportable tension from "Shutter", no gruesome-deformed faces from "The Ring". The last three-quarters of the film we're dealing with the ghost, who-as usually-seek revenge. The main problem is that we have real difficulties to know who's the real person, who's the real person possessed by the vengeful spirit, who's the real spirit, what's real and what's imagination and who's the reincarnation of the spirit. It's not easy to follow. Once invoked(at the beginning) the spirit move from person to person, determining the subsequent behavior. Some commit suicide by putting a plastic bag over the head, spilling flammable liquid over and set it on fire. Other girl throw herself out of window.
About the standard, mandatory, long-haired girl(notice that I didn't said "ghost"): As I said, you will see a LOT of standard stuff. A face looking down and then slightly starting to rise the sight. Don't expect demoniacal expressions, sudden scares in sync with loud sounds. Once is the real girl-school, next time the ghost, next another girl possessed by the ghost. Hmmm, pretty twisted, maybe a second viewing is necessary.
Otherwise, even the plot is relatively clear, it is also pretty twisted. There's a lot of talk. All the girls are beautiful and in general the cast consist in pleasant-looking people. Unfortunately, if you want to be really scared, this is not the right movie.