A Certain Promise

Overview

Sung Jun manages to escape from Moon Kang thanks to Eun Ki. As she believes that Sung Jun is not the killer of the Joker Murders, she helps him clear his name. However, the public and the police are certain that he is the culprit. Being chased by his own colleagues, he must prove that he did not kill anyone.

Guest Stars

Kim Young-sun

Baek Moon-kang's wife

Eom Hye-soo

Court room girl