Doctor Detective

Joong Eun makes a living out of concealing industrial accidents. Il Sun and her run into each other.

Joong Eun realizes that her neighbor, Ha Rang\u2019s working environment is not stable and safe and asks him to go and get a check-up as he seems uncomfortable. However, Ha Rang goes to work even though he knows that there is something wrong with his health and gets into an accident.

Joong Eun is determined to get to the bottom of Ha Rang's death. Sung Kook takes matters into his hands.

Min Ki from UDC does some investigating and finds out a possible way to find concrete evidence. However, Joong Eun's intuition and detective work lead them to find n-Hexane in the water bottle. Meanwhile, Joong Eun asks Ha Rang's mother if they could proceed with an autopsy.

Ha Rang's funeral is held without the autopsy being performed, and his colleagues offer condolences.

An old man named Young Han, who is suffering from asthma, comes to see Il Sun. The UDC members think he may have gotten the disease from his work, a bakery. Min Ki is reminded of the day when his father died a wrongful death. And he and Joong Eun start to investigate the bakery.