Le Procureur Masqué

Ha Dae Cheol, a prosecutor from the South District Prosecutors' Office is reunited with Min Hui, a detective in the Gangnam Police Department Homicide Department.

Min Hui thinks that Dae Cheol is a jerk, but Dae Cheol sent Min Hui valuable information that will help her solve the case.

Dae Cheol is shocked to learn about Do Sung's death. Prosecutor Kang plans to close the case by making Do Sung a murderer, but Min Hui, who has got keen insight, senses that something is off. Dae Cheol and Min Hui try to get the real assailant of the case each is in charge of, and Sang Taek finds Min Hui annoying.

Dae Cheol, wearing the mask, saved Min Hui from Jang Gwon\u2019s attempt to kill her. Min Hui suspects that Dae Cheol might be the guy in the mask.

Jang Gwon loses consciousness and is taken to the hospital, so Dae Cheol has no choice but to wait until he wakes up. Ri Na looks for other witnesses who can testify about Sang Taek's involvement in the murder case, and Min Hui tells her about Ho Sik, Do Pil's chauffeur. Dae Cheol brings Ho Sik forth as a witness.

Dae Cheol saw Min Hui, who was hurt, and took her to a hospital. Min Hui tried to find Lee Jang Gwon\u2019s wife, who Jo Sang Taek\u2019s guys were holding.