Based on the animated film "King of Pigs" by Yeon Sang-ho. A thriller drama that tells the story of the people who brought up the ‘memory of violence’ through serial killings which started through a friend’s message 20 years ago.

A romance about an artificial intelligence (AI) programmer and classical recording engineer.

After barely surviving a violent attack by an elusive serial killer, crime boss Jang Dong-su finds himself forming an unlikely partnership with local detective Jung Tae-seok to catch the sadistic killer simply known as "K".