Part 4/7:
In a tense series of events, Kyung-min searches for answers, following a trail that leads her to the missing woman. A horrid twist reveals Seung-hye tied up, her life actively threatened by the very person who has invaded Kyung-min's safety. In a desperate bid for survival, Kyung-min musters all her wits to escape the clutches of the killer, leading to an intense showdown where her resolve and instincts are put to the ultimate test.