A residential area near the sea in Kanagawa. The owner of the house, Sawada, died in an unfortunate accident that occurred in the garage of his house. After hearing the story from Sawada's wife Akari (Yamada Maho), Domoto (Nakamura Anne) suspects that it was just an accident and begins an investigation with his junior detective, Kikuchi (Miyachika Kaito). Meanwhile, Iida (Takehara Pistol) tries to find the invisible person involved in the series of suspicious deaths that Domoto is investigating. Then, a "man" appears before them.