[citation needed] A young boy, Takeshi, is told by a mysterious woman that he will die after picking up a ticket inside a red bag.

The next day, Takeshi's classmate, Noriko Kimura, finds the ticket and shows it to her sister, Nana, experiencing a vision of a baby and her mother in the process.

Nana's classmate, Kanae Fujita, receives a bracelet from her boyfriend that turns out to be a useless trinket.

Deciding to tackle the mystery together, the two agree to meet at the station the next day, but Nana unexpectedly has to attend her sick mother at the hospital.

Unraveling a passageway behind the tunnel walls, Nana and the woman discover the spirit's ancient statues and Noriko sleeping atop a mountain of dead bodies.

Nana almost falls to an endless chasm, but is pulled back by her sister, Kuga, and Kanae's spirit.

Nana watches the TV and learns that Kuga has ordered an explosion on the subway to seal it forever.

The story references an event that occurred in Mizunashi during 1971, in which a lady called Yaeko Aonuma was killed in a train accident.

In the film, while Nana Kimura is browsing a book, the fictional Miskatonic University of the Cthulhu Mythos is featured on one of its pages.

[2] A novel and comic adaptation saw publication in the same year, with the publishing of the works handled by the Kadokawa Shoten.