Mona, a university student lives with her mother Nooshin who is a teacher. Nooshin had told Mona that her father was killed in an accident when he was helping a climber friend in a mountain before she was born. In spite of her mother’s strict control on her relations, she has a boyfriend. They plan to go to study in Canada. Looking for her passport, Mona checks out a box hidden in the basement and in there, she finds a photo of her mother with a Japanese man and herself as an infant. Also there is a small note written in Japanese. She takes the picture of the notebook and has it translated in Japanese language dept. at her university. There she finds out her birth place was in Tokyo. Getting suspicious at her mother, she follows her when she leaves home and goes to a hotel late at night. Mona finds out that her mother is meeting a Japanese man. The relation between mother and daughter distracts. Mona is doubting all the stories told by her mother about the father she has never met - Is this Japanese man her real father? What is the relation between him and her mother?