From Director Takashi Shimizu (The Grudge, Ju-on), Childhood friends Ken, Motoki, and Rin estranged for years but now reunited 10 years later are joined by the last of their group, Yuki, who has been missing since her disappearance at the House of Horrors a decade earlier. Her sudden reappearance in Rin s living-room as a frail, distraught woman, has set in motion a string of terrifying events. The group brings Yuki home, where a menacing-looking toy rabbit triggers a panic attack in Yuki and she falls down a flight of stairs. Joined by Miyu, Yuki s younger sister, the five quickly rush Yuki to a hospital, where something seems terribly wrong. No one is there to help them and not a patient is in sight. In the midst of the confusion, Yuki disappears. The night of terror that ensues, where Ken, Rin, Motoki and Miyu must navigate the labyrinth-like corridors of the hospital as well as their own minds, are forced to confront their past, unearth long-suppressed memories, and test the resilience of their sanity.