A child from Bong Hee's Taekwondo classes witnesses a murder, but claims he doesn't remember the killer's face.

Hyun Soo wakes up, but seemingly can't remember anything, which leaves Ji Wook suspicious.

Hyun Soo's whereabouts are unknown, and no one knows just how much of his memory has returned.

Ji Wook must tell Bong Hee the truth about their parents' deaths. District Attorney Jang re-examines his son's murder case.