Back in his high school days, Joon-Seok (Joo Sang-Wook) was bullied by Chang-Sik (Yang Dong-Geun). Because of this, Joon-Seok’s high school days were like a nightmare. Now, Joon-Seok finds it difficult to live a normal life due to the bullying. Meanwhile, Chang-Sik, who has forgotten what he did to Jeon-Seok, lives a relatively happy life. He is about to marry Ji-Hee (Lee Tae-Im). Joon-Seok will pay him back for all the misery.

On September 4, 1984, democracy movement leader Kim Jong Tae (Park Won Sang) is arrested and taken to an infamous interrogation facility in Namyeong-dong. For the next 22 days, he would be cruelly and continuously tortured in all manners by interrogators intent on forcing him to confess to communist collaboration.

Summoned by an unexpected phone call, an elderly woman visits the country cottage she lived in as a child. Memories of an orphan boy she knew 47 years ago come flooding back to her.