Muoi: The Legend of a Portrait is a 2007 Korean horror film. It has a ghost/possession/revenge plot. I like this. I find it relentless, with a lot of atmosphere.
KoreanMovieReviews.com says, "it delivers the horror – through atmosphere, suspense, visuals, and jump-scares". KoreanFilm.org says, "Muoi is a serviceable horror film with two or three effective jolts, but the real reason for any viewer to watch it to the finish is to gawk at its two incredibly beautiful lead actresses."