A woman uncovers sinister secrets while investigating the apparent suicide of her sister.
While celebrating with her friends in her new cheaply rented apartment on the thirteenth floor of a building, the young Sayaka unexpectedly jumps off the balcony committing suicide. Her mother goes insane and her older sister, Mariko, decides to investigate the mysterious death of her sister.
Naoto was ignored by other people. During his school days, Chihiro was the first person who called his name. Naoto dreams of seeing her again and tries to find her. Finally, after 11 years, he locates her, but she is a totally different person now. Naoto becomes obsessed with her. Naoto sneaks into her house and stays under her bed.
