Sketch S01E11 - Episode 11

Si Joon reveals himself to Do Jin. Do Jin gets shocked as the unexpected person shows up. Meanwhile, Dong Soo and Si Hyun look for the wife of Pil Gyu, who ordered Do Sik to steal Si Hyun's father's notebook. Pil Gyu's wife tells Dong Soo and Si Hyun that another person came by to ask about the incident that occurred 20 years ago. Dong Soo feels that this incident is related to Ji Soo's death and looks for the USB.