The City of Violence is a 2006 South Korean action film co-written and directed by Ryu Seung-wan. The story re-unites three old friends for a fourth one's funeral, where they vow to find his murderer.
After an ex-gangster named Wang-jae (Ahn Gil-gang) is killed by a gang of punks, his four childhood friends come back together for the first time in nearly twenty years. Each of them has gone different ways, Tae-soo a detective, Pil-ho a powerful mobster who once worked with Wang-jae, Seok-hwan (Ryu Seung-wan who also is the director) a reformed mobster and his brother Dong-hwan a math teacher. They reminisce about times gone, their mischivous teen years, and a pact they made on a school picnic. Young Wang-jae made a snake tonic and buried the bottle, vowing that twenty years later they would all gather and drink it after they became wealthy men. After the funeral both Tae-su and Seok-hwan deal with their grief by investigating the murder. While on the case Tae-su is attacked by a massive gang of youths, who use baseball bats, hockey sticks, and even yo-yo's as weaponry. Tae-su barely escapes with help from Seok-hwan, and the two team up, taking their revenge on the crazies the next
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