[1] The film follows the lives of four childhood friends: Joon-seok, the leader of the group whose father is a powerful mob boss; Dong-su, whose father is an undertaker; class clown Jung-ho; and Sang-taek, who was an exemplary student.

Joon-seok invites the band to a party at his house, where Sang-taek receives his first kiss from the lead singer, Jin-sook.

In school, Joon-seok and Dong-su get in trouble after a confrontation with a teacher; they apologize and only receive a light suspension.

During an outing to the movies, Sang-taek catches the eye of a school kid he had picked a fight with earlier.

He is suffering withdrawal symptoms and is abusive towards his wife as a result of being addicted to philopon.

Joon-seok, Sang-taek, and Jung-ho remain close, drinking, singing karaoke, and eating galbi together.

After Joon-seok leaves their meeting, Dong-su reflects and asks one of his men to take him to the airport.

The film ends with Joon-seok walking to his fate in prison life, and Sang-taek reflecting on the past when they were all children, when they were all good friends.

[4] Kwak Kyung-taek directed a 20-episode television remake starring Hyun Bin as Dong-su and Kim Min-jun as Joon-seok.

Yu Oh-seong reprised his role in the 2013 sequel, which takes place seventeen years after the events of this film.