Due to an explosion, Hyung In's partner Si Jeong gets injured, which devastates Hyung In. This makes him drop the case. However, a key suspect of Jae Young's case, Kim Hwan Kyu turns himself in. Jung Hyun hears from Jae Young's friends that Jae Young had sent them a message a month before Kim Hwan Kyu turned himself in, and this makes Jung Hyun believe that Jae Young is still alive.

Jung Hyun is kidnapped and forced into a mysterious ritual. She realizes that Jae Young is not dead and is held by the people of Youngjingyo. The man who works as a representative of Youngjingyo reveals a shocking truth behind the 1987 terror attack. Hyung In also realizes that he's been surrounded by Youngjingyo for a very long time.

After Jung Hyun is released and sent back home, she leaves again to look for Jae Young with Yong Tak. Another murder case occurs in Saju City. To get to the bottom of all this mystery, Hyung In decides to do it his way.