grow up in. One night when Gi-seob is walking home alone, he is followed by Myung-jin. Gi-seob at first runs away, but is snuck up on and hit by a brick. An ambulance comes and Detective Jo and Soo-ah drive to the scene. Gi-seob gets annoyed by Soo-ah's constant nagging, and on the day of his release, storms out in anger. When he reaches the nearly-empty subway station, he sees Soo-ah on the other side and then sees her ride the subway followed by the killer. He calls her on her phone and tells her urgently that the killer is in front of her. As he runs to catch up with her, she goes on FaceTime and shows him her location and surroundings. He guides her out of the subway and to safety, as well as her seeing eye dog, Seul-gi. She reaches into her handbag and sprays the killer's eyes with her pepper spray and runs off with Seul-gi. When she reaches the elevator, she thought that she'd be safe, but the killer quickly gets in and kills Seul-gi. When Soo-ah wakes up, she asks for her seeing dog, but Gi-seob hands her the blood-stained leash. At home she gets a call from an unknown number. The caller warns her away from the case. "You can't see me, but I'm watching you." A few days later, Detective Jo finds the killer. They get into a violent fight, in which the detective dies and the killer drives off. Meanwhile, Gi-seob and Soo-ah visit the orphanage again when they're asked to watch over it while the school director takes the children out. The killer enters the living room and lights a cigarette and listens to some music. Soo-ah, annoyed by the music, goes downstairs to turn it off. She reprimands Gi-seob for playing it, but smells the cigarette smoke. Gi-seob goes upstairs and fights the killer while Soo-ah runs away, reaching the car and breaking its windows with the motion sensor. The killer attacks her but she hits him on the head, making him fall unconscious. The police find Detective Jo's body and other evidence implicating Myung-jin as the killer and he is put in jail. Soo-ah is re-admitted to the police academy and graduates, while Gi-seob also enrolls in the police academy. Cast Kim Ha-neul as Min Soo-ah Kim Soo-jin as young Soo-ah Yoo Seung-ho as Kwon Gi-seob Jo Hee-bong