A kid who is referred to as the Reset Man makes a call to the police and confesses that he has killed his mother. The Neuroscientific Investigation Team believes that he is suffering from anterograde amnesia and that his memories are reset every 30 minutes. Ha Ru rejoins the team when he hears about the name of the suspect’s disease. No clear evidence supports the theory that the suspect is guilty of the murder, and the investigation continues. (Source: Viu)