Togakushi Kyoko (Igawa Haruka) is a reporter. One day, she came to the nursing home for an interview, but encountered a bizarre suicide. Afterwards, Associate Professor Tokawa Otoichiro (Yanagi Yurei), whom Kyoko had interviewed, also committed suicide. Various clues indicate that the two cases are inextricably linked. Yumi (Nanase Hoshii) and Hiromi (Mio Reki) are good friends who can talk about anything. Their friend Misato (Makoto Yamazaki) committed suicide not long ago. Before her death, Misato's body showed some strange symptoms. Now, these symptoms also appeared in Hiromi, which made Hiromi very uneasy. That night, Yumi found Hiromi's body. Yumi once found Kyoko to confide in her, but Kyoko did not take it to heart. Now, the frequent suicides remind Kyoko of Yumi, but she ultimately failed to stop Yumi's suicide. Kyoko is determined to investigate the truth of the incident.