Story : The search team has found Woo Hyun's son's body. Everyone is shocked by how much the boy's corpse was wrecked by the hunter. As someone with experience in losing a child, Dong Guk gives a piece of advice to Woo Hyun. CEO Hong turns out to be an accomplice to Woo Hyun's case. The difference between psychopaths and regular people are hard to distinguish, just like a 1mm difference.