After Ju Seok's death, a special task force gets formed. Jae Hwan gets interrogated for being at the crime scene, and he tells them that the water caught on fire. However, no one believes him. Jae Hwan still suspects Joong Yeop as the culprit. With Eugene's help, he digs into the mystery and finds crucial evidence.

Seoryun Medical Center's legal team stops the police's interrogation of Joong Yeop, the main suspect, and he is free to leave. After having drinks with the investigation team, Jae Hwan opens up and tells Eugene about his father's death. Now safely at his house, Joong Yeop recollects what happened at the Macheon Police Department when he was young. Later, Joong Yeop shows up at Eugene's lecture and brings up the past.