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.

Born in a poor family, Tae-su learns that the power is the most important thing in life and decides to become a prosecutor, the biggest symbol of power in the 90’s. After entering the most prestigious law school, experiencing democratic resistance in Korea, Tae-su finally reaches his goal of becoming a prosecutor but his life is no better than a salary man. By chance, he joins a clique of the powerful prosecutors with wealth and authority. He finally gets a taste of a life of the top hierarchy, but as he enjoys the sweetness of supremacy, he also sees the cruel side of it.