Remember: War of the Son Episode 3

Attorney Dong Ho learns that the murder of Jeong Ah is related to Gyu Man's party. He then decides to defend Jae Hyuk at court. He also learns that Jae Hyuk was blackmailed to write a confession statement by the detective in charge of the case. By using Jin Woo ability, attorney Dong Ho is able to prove to the court that the confessional statement was illegally obtained. Jin Woo visits the doctor and finds out that his father has Alzheimer's disease. Attorney Dong Ho is able to illegally record Gyu Man in a bar confessing to murdering Jeong Ah. Gyu Man finds the bug and goes to see attorney Dong Ho, who blackmails him with the video. Jin Woo and In Ah sneaks into Gyu Man's home and because of his ability he is able to notice that one of the dress is missing, which he has seen previously in a video chat with his father the day of the party. Jin Woo and In Ah both see the video of Gyu Man confessing.