Ha-eun, an ordinary housewife who has endured her husband's violence for 13 years, challenges her husband, who is a mixed martial arts champion, to a duel in the ring.

Ho-seong was once a criminal. After eight years in prison, he is released, reuniting with his family. He needs money for his new business, so he plans to collect it at his father's funeral. However, things go wrong.

Three elite North Korean sleeper agents live under cover for so long that they believe their cover stories are their real identities. They are shocked when they are ordered to kill one another or face death at the hands of an elite hit team.

Man-chul leads two lives, he is married to Myeong-sun and he is also living with Jeong-ae, a wealthy and sexy woman. One day he accidentilly catches an escaped convict, which then attracts un-needed attention to his life. In order to keep his secret from his two lovers, he and his best friend must lie to reporters, cops and neighbors and the situation just gets crazier and crazier with every lie.

Four unlikely assassins question their assignments because they genuinely care about their customers and victims. However, they attract police attention and a prosecutor is on their trail.

While his girlfriend is away on a trip, retired assassin Bang Ui-kang is tasked with looking after her friend's 17-year-old daughter. After a street attack, Bang Ui-kang becomes embroiled in a murder investigation and dangerous trafficking gang.

A detective accidentally kills a man and disposes of the body to protect his career. The next day he sees that someone has hanged the corpse from a crane for all to see. He takes charge of the murder investigation to protect himself and find out who did it.

When his wife is murdered, Dong-ho loses the light in his life, breaks down and falls into depression. But he knows that as long as the killer is still around, he can not get out of his loss. Then, one day, he receives a call and can not believe who he is listening to.

When raw gold is discovered deep in the woods, a group of gold hunters arrive to mine it. Several neighbors in the area witness the hunters by chance and find themselves in danger. Among the witnesses, hunter Ki-sung risks his life to protect the other witnesses and engages the gold hunters in a cat-and-mouse game of death.

Major crimes unit detective Seong-jin arrests Tae-sung for petty crimes, but shocked to find out that he is the notorious serial killer. However, Seong-jin becomes doubtful of his identity as the serial murder case is investigated.