He's a Psychopath Who Cannot Feel Any Emotions - S1.E9

Hui Jae is caught by the police because of his own son, Na Moo. He tells Na Moo that wickedness is not something that can be developed but that it is in one's blood. Meanwhile, Hui Jae's autobiography puts the spotlight on Jae Yi and her family. Do Jin decides to be interviewed and even asks for his face to be revealed.