일 년 전 죽은 전처에게서 연락이 온다. 태수는 지수의 충격적인 비밀을 알게 되는 한편, 준태는 사건이 진행될수록 수상하리만치 예민해진다.
Tae-soo gets a call from his wife, who died one year ago. As Tae-soo learns about Ji-soo's shocking secret, Joon-tae becomes increasingly apprehensive as the investigation progresses. Meanwhile, Ha-bin, who believes her mother is a murderer, begins to dig deeper into her mother's past as an unidentified man follows her from behind.
