Due to an explosion, Hyung Inโs partner Si Jeong gets injured, which devastates Hyung In. This makes him drop the case. However, a key suspect of Jae Youngโs case, Kim Hwan Kyu turns himself in. Jung Hyun hears from Jae Youngโs 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.