Dark Water (Honogurai Mizu No Soko Kara)

Dark Water is a 2002 Japanese horror film directed by Hideo Nakata, who is perhaps better known to the general public as the director of Ringu and Ringu 2. Dark Water is based on Floating Water, a short story by Koji Suzuki. Its Japanese name is Honogurai mizu no soko kara (仄暗い水の底から), which is also the name of the horror anthology by Koji Suzuki. There is also a manga adaptation that holds little similarity to the film, although the apartment building is identical.

http://www.imdb.com/title/tt0308379/