A class of students stays at school for a camp in an elite study group to finesse theirs and the school's grades. Upon the first night, the swimming coach is found murdered. As the students try to figure out what happens, a voice informs them that if they don't figure the murder out, students will begin dying in quick succession.

In real life, Kwon Yoo is unemployed, but in the virtual game world he is the best leader. Kwon Yoo is then framed for a murder. With the help of hacker Yeo-Wool, he tries to uncover the truth behind the murder case.

On his way to work, a bank manager receives an anonymous call claiming there's a bomb under his car seat, and if anyone exits the car, it will explode unless he can pay a ransom.

Eunjung and Qri star as a pair of delinquent thieves who wind up in a huge mess when the bag they lifted from a club turns out to have been stuffed with drugs. A flashback sequence reveals that Qri originally was Jiyeon, but after a run-in with a couple of gangsters, they mauled her face and she ends up with plastic surgery leaving her looking like Qri, and unrecognizable to the man played by Cha Seung Won, whom she once loved.

Su-young, a police detective who went to prison for someone else, is surprised when a mysterious woman named Yoon-sun arrives to collect her on her day of release. As she discovers that the promised compensation for her time behind bars has vanished, Su-young embarks on a mission to reclaim what rightfully belongs to her.

Nam-bok, a middle-aged South Korean farmer is conscripted and assigned a mission to deliver a classified military document that may decide the fate of the war. After losing it while under attack from the enemy, he then faces a teenage North Korean soldier named Yeong-gwang who happens to acquire the secret document on his way to the North.

Reunited in their hometown for their father's funeral, two self-interested brothers meet a peculiar woman who shares a huge secret about their family.

Do-yeon, a 6th grade elementary school student, meets her cousin Sang-jun at her grandmother's funeral. On the last day of the funeral Do-yeon and Sang-jun go into an empty classroom near the funeral. There they have their first sexual experience. Lee Rae, a single women in her 50's, lives with her father who suffers from Alzheimer's. She raises ducks, but recently got rid of them because of Avian Influenza. Her father's physical and mental health has also worsened. He even asks Lee Rae to touch him inappropriately. 17 year old Su-Jin was smuggled into the country by professional brokers. She was adopted into a family that lives in a countryside farm. On her first day at the farm she was raped by her stepfather. They also share the same bedroom. Su-Jin is continuously accosted by her stepfather. Su-jin sole source of comfort is the grandson, who sympathizes with Su-jJn and her plight. He is a victim of physical abuse from the stepfather. Su-Jin then becomes pregnant.

On the day of the hundreds billion dollar contract deal just ahead, Jung suddenly disappears after he leaves for a convenient store. Inspector Kim who is desperate to get an exclusive crime case in the hope of drawing media attention finds out that Jung had many jealous colleagues and starts to investigate the case focusing on embezzlement and kidnapping. On the other hand, inspector Park finds out that Jung’s fiancee Mi-sun, a sales manager at the insurance company, has recently took out a life insurance policy on Jung’s life and points her as a suspect. The more investigation goes further the more case gets mysterious and things start to get out of control as a missing case develops to an assault, a kidnapping and finally to a murder.