Park Seo-yeon

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.

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

Kwon Yeon-woo is a thirty year old low-level civil servant who works in a district office; quite innocent for his age, he has been on numerous blind dates in an unsuccessful bid to find a wife. After moving into a new place, he begins to encounter a high school girl, Soo-yeong, on his way to work every morning, and she begins to develop feelings for him. Meanwhile, Kang Sook has just started working at the district office straight out of high school, and falls head over heels for older woman Kwon Ha-kyeong.

In August 1950, waiting for UN troops to arrive, the South Korean army assembled to protect Nakdong River. Only 71 student-soldiers are left behind to guard the city of Pohang. Now they are on a mission to defend the country from North Korean troops.

An honest cop has to compromise with his principles when he is told to find a scapegoat for a high-profile serial killer case in exchange for a big promotion.

A man wakes up in the hospital after an accident with no memory of his name, family, or home. After the police identify him as Lee Mungi, he returns home, only to wake up and find a girl watching him. She claims to be a ghost. Mungi dismisses her as a hallucination until he finds her photo at a funeral and learns her name is Kim Yeonhwa. When he asks if she wants him to find her killer, Yeonhwa says the police can handle that and reveals that he has a more important task. The reason she came to him lies within his lost memories.

On March 26, 1991, five boys set off to the mountain to go frog hunting and never come back to their family. While a documentary producer, detective and professor try to solve the mystery of the incident, one of the boys' parents is a suspect.

Oki, a film student, gets involved in two relationships as she navigates the advances of a fellow student and grapples with her feelings for her much older professor.