Based on actual events that took place at Gwangju Inhwa School for the hearing-impaired, where young deaf students were the victims of repeated sexual assaults by faculty members over a period of five years in the early 2000s.

Sang-woo receives painful surgery when he is ten, and murders another kid from trauma. After he receives hypnosis treatment, he disappears with his family. After 25 years, a successful doctor meets his old friend one day, and everything changes.

Hae-gap is a director who makes anti-government documentary films. One day, Hae-gap’s son, Na-ra, runs away from home, but Man-deok, a freeloader living in Hae-gap’s house ends up bringing him back. Later, Man-deok raids the head developer of Deul Island to stop its exploitation, and Na-ra helps and ends up getting caught. In order to bring Na-ra out from jail, Hae-gap signs to stop making anti-government films and moves to Deul Island with his family. Na-ra sees his father leading a good, quiet life there and starts opening up. But when a construction company charges in to clear-out the island and the islanders fall at risk of losing their homes, Hae-gap leads a strike against it and his family fall in grave danger...

Aeja, a struggling writer, nears 30 and looks for her next big break. She has always counted on her mother's tough love to straighten her out, until her mother suddenly collapses.

Hyun-tae, In-chul and Min-soo have been best friends since childhood. Their relationship is forever changed after Hyun-tae's mother asks In-chul to commit insurance fraud by destroying her arcade.

'Monster Cop' Ma Seok-do investigates an illegal online gambling business led by a former STS Baek and an IT genius CEO Chang. Ma proposes an unexpected alliance to Jang and begins hunting down the criminals.