LOFT

Rofuto (a.k.a. Loft) is a 2005 Japanese horror film written and directed by Kiyoshi Kurosawa, and starring Miki Nakatani.

The movie revolves around Reiko Hatuna, a novel writer, who after becoming extremely stress with her forthcoming work, moves to a quiet country side house to finish up her new novel.
One night, as she is looking through her bedroom window, she realizes there is a man living in the building right across from hers. She finds out that the man is Makoto Yoshioka, an archaeologist researching ancient mummies, and has recently discovered a thousand year old mummy.
One day, Reiko finds out her room once belonged to a woman who disappeared not long ago. As the movie progresses Reiko discovers that there is a connection between the ghost that is haunting her and his new friend's profession.