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.
中越典子
as Mariko Midorikawa
古田新太
as Detective Sakurai
初音映莉子
as Yukiyo Sugiuchi
板谷由夏
as Woman Next Door
大谷直子
as Midorikawa San
深田晃
as Midorikawa Sayaki
松尾敏伸
as Iwata Kenichiro
街田しおん
as Yukiyo's Mother
