Unalterable

Jong-dae and Yong-ki make a living by picking up paper and empty bottles. Both then join different gangster clan and becomes involved in a struggle of political interests over development in Gangnam, Seoul.

After barely surviving a brutal attack by a sadistic serial killer, crime boss Jang Dong-su is left humiliated. Determined to catch the killer known as K, he forms an uneasy alliance with Jung Tae-seok, a relentless and incorruptible detective who often disrupts his illegal business. However, while Jang Dong-su wants K dead, Jung Tae-suk is determined to bring him to justice. With a deal in place—whoever finds K first will decide his fate—the hunt begins, blurring the lines between crime and law.

An undercover cop has his loyalties tested when the boss of the corporate gang he's spent years infiltrating dies.

A middle-aged gangster's lifetime of mistakes catch up with him as his personal and professional life is destroyed.

Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself.

A bouncer with an anger management problem goes on a furious and resentful rampage after the murder of a friend.

Loosely based on the criminal career of Frank Lucas, a gangster from La Grange, North Carolina, who smuggled heroin into the United States on American service planes returning from the Vietnam War, before being detained by a task force led by Newark Detective Richie Roberts.

The comic strip detective finds his life vastly complicated when Breathless Mahoney makes advances towards him while he is trying to battle Big Boy Caprice's united mob.

Sang-hoon is a lowlife gangster, a debt collector exercising thuggish ways to collect his money. The recipient of nothing but anger since his childhood, he expresses himself through violence. When he finally encounters someone who can stand up to him, feisty school-girl Yoon-hee they become unlikely friends.

An assassin named Tae-goo is offered a chance to switch sides with his rival Bukseong gang, headed by Chairman Doh. Tae-goo rejects the offer that results in the murder of his sister and niece. In revenge, Tae-goo brutally kills Chairman Doh and his men and flees to Jeju Island where he meets Jae-yeon, a terminally ill woman. Though, the henchman of the Bukseong gang, Executive Ma is mercilessly hunting Tae-goo to take revenge.