Hyun Su gets into trouble while undergoing a plan to find Do Min Seok's accomplice. Just when Hyun Su is about to give up, Ji Won shows up and saves him. Although Ji Won forces Hyun Su to run away before it's too late.
Hyun Su asks Moo Jin to look for Hae Su in order to find the accomplice. Ji Won's team gets to re-investigate the Yeonju City serial murder. Meanwhile, Hyun Su finally meets Hae Su.
Hyun Su seals a deal with the head of the human-trafficking ring to retrieve information about Do Min Seok's accomplice. Ji Won feels anxious about Hee Sung's every move and Hee Sung starts to think that Ji Won might know who he really is.
A police officer hands over a watch strap that is engraved with Hee Sung's initial on it. Ji Won instinctively feels something is wrong. And the owner of the inn calls the police to report that a taxi driver is beating up a passenger.
Hee Sung gets baffled to become the prime suspect of Hoesin-dong Chinese restaurant murder case. Only Hee Sung and Moo Jin know that someone else is copying Do Hyun Su to pin the murder case on him.
Ji Won feels something is not right when she saw Hee Sung coming home with a raincoat on in the middle of the night. Ji Won gets assigned another murder case, surveillance footage shows that the victim got killed by a man in a raincoat