Synopsis
Yoriko Kusumoto, a clumsy high school student, holds deep affection for Kanako Yuzuki. As they prepare for summer vacation, their plans are shattered by a tragic incident: Kanako is found critically injured on railway tracks, while Yoriko collapses in tears on the station platform. Detective Shuutarou Kiba, a passenger on the train involved in the collision, takes charge of the investigation. His inquiries reveal a tangled web of deceit surrounding the Yuzuki family, particularly Youko Yuzuki, Kanako's sister and a famous actress. After Kanako's successful surgery, her precarious condition prompts Youko to entrust her care to Dr. Koushirou Mimasaka at an unusual, box-shaped facility deep in the forest for experimental treatment. The situation worsens when Kanako mysteriously disappears during a visit from Kiba and Yoriko. Kiba's pursuit of the truth intensifies as he uncovers horrifying evidence, including the dismembered bodies of young girls stored in boxes. A colleague suggests these grisly findings are linked to Kanako's disappearance and her sister's enigmatic past. With support from his colleagues Tatsumi Sekiguchi and Akihiko Chuuzenji, Kiba races against time to find Kanako and uncover the chilling reality behind these horrors.
