A woman who has moved into a new house in canada gradually feels strange and frightened by existence of something and her hidden past is revealed. A woman who aim to be an architect comes to vancouver and starts living by herself. She finds a house which the owner lives at the basement, and she will use the upstair of the house. The house is a huge than she expected, but no housemates dispite the fact that there are many rooms. She meets her owner of the house and chats with her sometimes, but she gets feel lonely and begins to talk with her twin brother in japan on phone. Then, she gradually starts having hallucinations and nightmare of a creature, and she becomes aware of something else in the house. At the same time, she gets along with a person who she can be naturally talk. And, she talks about her problems of hallucinations or nightmare she holds with the person. The person gives boxed Christmas gift for her. The boxed presents reminds her of her memory of past. Then, she realizes that her twin brother had already passed away last winter because of illness, and her hallucinations was herself from a darkness of her mind for the reason. After that, she finally decides to walk forward without being bound by the past.