The next morning, the Soojins wake up to find that their sister is not well. She has been sleeping for the past few days, and they are worried that she has been murdered. The Soojin tells them that the police have arrested one of the suspects, but that the woman is mentally ill and suspects that someone has killed the man to prevent her from revealing the identity of the murderer. The police have not yet confirmed the woman's identity, but they do know that the man was killed to prevent the woman from revealing his identity