유력한 용의자가 한 명으로 좁혀졌지만 종적을 완전히 감춰버린 뒤. 첫 번째 살인을 막아낸 뒤 두 번째 피해자를 지키기 위해 최선을 다 하는 해준과 윤영. 하지만 이번 피해자, 어디로 튈지 도무지 예측을 할 수가 없는 사람이다.
Hae-jun and Yoon-young feel relieved, knowing that Lee Ju-young is out of harm's way. Immediately, their attention shifts toward preventing a second tragedy. They hold on to the belief that as long as they remain vigilant and closely monitor the potential victim, nothing untoward will occur. However, their decision to solely focus on a single target may have been an oversight, as unexpected events tend to unfold precisely when and where one least anticipates them.