The Planning Officer still refuses to open up to Lee Hyun concerning his past in regard to Joon-Young. Team 1 starts working on another serial killer case involving stalking and missing persons. Detective Son’s blind date, Ji Hyun-Sook, goes missing. Lee Hyun develops a profile with possible locations the culprit may be working from. While Cha Ji-An and Team Leader Kang go to check it out, Lee Hyun has a dinner date with two persons of interest to him, Attorney Jung and Pathologist Lee.

The serial killers, Do Jae-Shik and Kang Seong-Eun, capture Cha Ji-An and leave Team Leader Kang dying from a knife wound. Lee Hyun, Attorney Jung, and Pathologist Lee join Team 1 as they rush to apprehend the suspects. Planning Officer Hyun finally confesses about her deal with Joon-Yeong that inadvertently lead to the death of his father and his brother’s disappearance. Officer Cha and Ji Hyun-Sook are rescued. Budding romance blooms as Lee Hyun and Ji-An move closer in their relationship.