Kusumi has regained consciousness but he looks totally different than he did before the incident. In the meantime, AI analysis shows that four people may have been murdered by the same person.
Someone pushes Kuroshima at a train station and she falls onto the tracks. The residents are suspicious of their new resident, Minami, who exhibits a keen interest in Kuroshima's accident and other cases.
Detective Kamiya becomes the new victim. Since his belongings are taken, Shota thinks that Kamiya may have had information that could lead to the murderer.
Guessing Kuroshima's stalker, Uchiyama, may have been bugging Kuroshima's room, Shota raids Uchiyama's place. Shota finds a disturbing and shocking confession that Uchiyama made by video prior to his death.
