Kagenuma has the gift to enter anyone's dreams. He uses it to walk into the nightmares of his acquintances and save them from their fears. Somewhere in the same town, the police are facing a series of strange suicide cases in which the victims were screaming for help while killing themselves. The transferred detective Kirishima starts to think these people were actually murdered. All traces lead to a cellphone number. It looks like the victims were having terrible nightmares just before their death. That's why Kirishima and her partner Wakamiya decide to seek some help from a dream expert: they ask Kagenuma to cooperate with them.