Sorum

Sorum is a 2001 South Korean horror film and the feature film debut of director Yoon Jongchan. Starring Kim Myungmin and Jang Jinyoung, it tells the story of a young taxi driver who moves into a dilapidated old apartment building, the site of a brutal tragedy thirty years earlier. The film has been nominated for and won several awards.

After befriending the neighbor living a few doors down, he falls into an affair that sends them both down a dark path. But theres something else odd about the atmosphere in the rundown building. Does a ghost haunt those living here, or does the evil exist in those left alive?

Source: Wikipedia