After a man accidentally leaves his smartphone in a taxi, he and his girlfriend are plagued by stalkers and cybercrimes.

A couple of months have passed since the serial murder case. A new dead body is found in the same area. Detective Manabu Kagaya tries to find the truth. He goes to see serial killer Yoshiharu Urano in prison.

Genius hacker and murderer Urano escaped from prison and fled to South Korea. Urano was hired by a South Korean anti-government organization to set a trap targeted for the Korea-Japan summit meeting. Sumin is assigned to watch over Urano but is intimidated by his frantic behavior. Urano distrusts her, but gradually their feelings begin to change a little.