Yun Pil Woo, CEO of a world-renowned bio-pharma company, comes back to the country. He seems to be quite close to Jang Do Sik. Meanwhile, A female orphan is found dead. The method of murder is similar to how the people of Segyeong Orphanage were killed. People say that the killer Ahn Su Ho is back.
실종자 노영미의 계모가 불현듯 돌아왔다.
특수본은 계모 조애숙을 보험금을 노린 용의자로 특정하지만, 시온은 사건의 뒤에 더 커다란 배후가 있음을 직감하는데..
