Nobody Knows

A high school boy falls off of the top of a building and lapses into a coma. A detective and his school teacher attempt to get to the bottom of the incident.

A high school boy falls off of the top of a building and lapses into a coma. A detective and his school teacher attempt to get to the bottom of the incident.

A high school boy falls off of the top of a building and lapses into a coma. A detective and his school teacher attempt to get to the bottom of the incident.

Young-jin and Seon-woo discover a button from Eun-ho's uniform in the abandoned building where he was found. Believing that foul play was involved, Young-jin retraces Eun-ho's actions the day he was pushed.

Young-jin and Seon-woo start looking for Dong-myung, who has suddenly disappeared. Sang-ho decides to find Eun-ho, a caregiver.

A high school boy falls off of the top of a building and lapses into a coma. A detective and his school teacher attempt to get to the bottom of the incident.