He also remembers that he left the incriminating fountain pen in the past. Kwang-ho sits alone in the tunnel and makes the connection that his time jumps occur whenever he’s there at the same time as Mok Jin-woo. Mok was the killer before he returned to the past. He wonders if Kwang-ho figured out that Dr. Sun-jae explains that his mind went blank, and he ended up at her place because he didn’t know where else to go. Mok has managed to avoid capture for over thirty years. Jae-yi comforts him with a reminder that Dr. Inside, Jae-yi bandages Sun-jae’s hand while he admits how miserable he is to know that Dr. He whimpers in agony as he recalls his history with his friend before dropping to his knees and punching the ground in anger.Īt home, Jae-yi’s review of the dot murder cases is interrupted by her doorbell, and she finds Sun-jae on her doorstep, his face blank and his hand bloody. Sun-jae stops at an isolated spot along the river while the reality that Dr. Mok’s explanation that Ho-young strangled Lee Seo-yeon repeatedly and realizes that it was a lie. Meanwhile, Sun-jae drives alone in his car, lost in thought after his meeting with the NFS forensics doctor who explained that only the killer could know how many times a victim was strangled. He weeps in frustration because his pursuit of Jin-woo has separated him from Yeon-sook yet again. Kwang-ho runs back through the tunnel and recalls Yeon-sook’s fears and his reassurance that he’d be back. In the future, Kwang-ho is heartbroken that he left Yeon-sook alone in the past once again. Yeon-sook looks down her street as she remembers Kwang-ho’s promise that he wouldn’t be late.
Mok experiences a new memory - his pursuit by Kwang-ho in the tunnel thirty years earlier. Suddenly he stops, and the ball drops from his hand as Dr. Mok tosses a baseball in the air as he reads Jae-yi’s biography on his computer, since he’s figured out that she’s Kwang-ho’s daughter. After Jin-woo exits the tunnel, there is a jolt as vines drop in front of the opening, and Kwang-ho runs out to discover that he’s returned to the future.ĭr. Kwang-ho chases the young Mok Jin-woo through the tunnel, and a familiar shimmer appears around them. Unfortunately, the monster they’re after poses a serious threat to all who try to stop him.
Kwang-ho has traveled through time for that very reason, and now that he’s surrounded by people who share his determination, he’s closer to his goal than ever before. It’s going to take an entire team to bring down a killer who’s managed to go undetected for over thirty years.