Joon is arrested for the murder of the top student at his prestigious school. When he is released, Joon holds students accusing him of the crime in a room and forces them to reveal their dark secrets.

Actor Yoo Ji-Tae’s directorial debut feature film is one part melodrama, one part comingof-age story about Soo-young, a miserable thirtysomething man and Mai-Ratima, a 22-year-old Thai girl who accepts a mail order marriage in order to realize her Korean Dream. Into their relationship comes Young-jin, a hostess, slowly turning it into a love triangle.

Back in his high school days, Joon-Seok was bullied by Chang-Sik 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. Joon-Seok will pay him back for all the misery.

On a live music radio show, a letter arrives from twenty-three years in the past. Through the letter, the first love and friendships of five friends are revealed.