Nursing student Asuka Ninomiya (Atsuko Maeda) moves to a dilapidated apartment complex with her father Isao, mother Sachiko (Naomi Nishida), and younger brother Satoshi.

Asuka begins experiencing strange occurrences, including scratching noises and the sound of an alarm clock, both coming from Shinozaki's flat.

When a cleanup team arrives to clean Shinozaki's flat, Asuka becomes acquainted with Shinobu Sasahara (Hiroki Narimiya), a cleaner with experiences in the supernatural who tells her that the living and the dead experience time differently: the living moves forward, while the dead is stuck at the time they died.

Shinobu invites his psychic friend, Sanae Nonomura, who learns that Shinozaki's spirit is not hostile - he only wants to thank her for discovering him and warn her that she is in danger.

She is actually haunted by Minoru, a boy from the apartment complex who died 13 years ago when he hid inside a garbage incinerator during a hide-and-seek game and was burned to death.

[7][8] Screen Daily gave a positive review for The Complex, saying that it was an "impressively structured horror film that is likely to thrill audiences".

[9] The Hollywood Reporter panned the film as a "disappointingly cliche-bound return to J-Horror inspires more giggles than shivers.