Professor Yoo, Lee Jung-joo and Sa Ui-hyun start digging into Choi Kyung-ho's case in earnest and visit with Seo Yong-soo to check about the cell phone. Jung-joo and Ui-hyun find out it was Professor Yoo who ask Ui-hyun’s father to represent Kyung-ho during the murder trial. All evidence points towards Assemblyman Do whom Jung-joo confronts. Professor Yoo acquires the missing cell phone.