Sorum
소름 (original)
A young man moves into a run-down apartment building and soon gets into a relationship with a neighbor. Both the characters and the building have traumatic histories, and over time the ghosts of their past come to light.
Starring Kim Myung-min, Jang Jin-young, Jo An
Watch "Sorum" on Kanopy released in 2001. It's a drama and horror movie, and has a rating of 5.7 out of 10 from Imdb which is fairly okay for this kind of movie.