On the eve of the dreaded university entrance examinations, the lives of 24 of the smartest and brightest students at one high school, are on the line. Locked inside a classroom and nowhere to escape, a television monitor broadcasts a terrified Hae-yeong, the top student at the high school, tied up and seated on a chair inside an aquarium that slowly begins to fill with water. A voice from the monitor announces if the 24 cannot finish the exam administered within the allotted time given, Hae-yeong will die and so will everyone held captive inside the classroom. Thus begins the examination that will determine whether they live or die.
Detective K: Secret
When a series of unusual murders occurs, Detective K (KIM Myung-min) and his partner (OH Dal-soo) are once again called into action as they discover a trail of bodies with mysterious bite marks.
Si-bum has a dream of being an actor. One day, he meets a girl Su-kyoung and falls in love with her at first sight. With Si-bum together, Su-kyoung seems to get over her pain and also the uncomfortable relationship with her father. But after a while, she has to confront her mother's death. To escape from the reality, they take a trip to the sea but then Su-kyoung gets severely injured from a car accident. Desperately struggling to save her, Si-bum steals money to pay her hospital and this leads him to work in a bar to serve rich girls. Now Si-bum uses his acting skill to relieve Su-kyoung and pretends he makes a living from acting. But when he is getting popular, he decides to follow his friend Young-ho to Seoul to make more money. One day he comes across one of his old friends and gets involved in a big fight.
A screenwriter dreams of success and has a boyfriend who is a member of an unsuccessful rock band. Her sister, an interior designer, meets an actor she falls for. Her niece is trying to figure out how to get her first kiss from her boyfriend. Three stories about life and dating.