Ji-woo, an outcast at a prestigious private school, meets Hak-sung, the school janitor who is actually a mathematical genius who defected from North Korea.
A man who sees a picture of a woman and feels a crush on her and goes on a blind date. A woman who is late for an appointment is as pretty as her photo, but her words are pouring out...
A cop catches a serial killer who murdered his sister but never finds her body. The lack of closure torments him and drives his brother-in-law insane, who makes a deal with the mafia for revenge.
Yoo-Suk looks for a girlfriend who disappeared. Ae-Yeon has a fake diamond which her ex-boyfriend gave to her. Ae-Yeon was dumped by her ex boyfriend. Byung-Chan does not believe in love. Bok-Nam is in love with a friend of a friend.
Su-yeon, a cellist in an orchestra led by her fiancé and conductor Sung-jin, disappears one day, leaving behind only a video recording. Sung-jin is devastated over the loss of Su-yeon, but feels a strong attraction to Mi-ju, a cellist who fills in for his fiancée. Then one rainy night, Sung-jin and Mi-ju get swept away by their mutual desires for each other and commit an unforgivable act at Su-yeon’s house. Meanwhile, Su-yeon, who is thought to have gone missing, remains trapped in a secret room inside her house, and watches the naked truth unravel before her.
