The film revolves around the relationship between two high school students, Yoo Shi-Eun and Min Hyo-Shin. As the two girls become romantically involved, their taboo friendship causes them to be marginalized by the other students. Unable to cope with the social pressures of having a lover of the same gender, Shi-Eun tries to distance herself from the increasingly dependent Hyo-Shin.
Woo Yeong-min retired from the police force after trying to save his partner and causing his death. After a series of mysterious deaths in the shopping mall in which his uncle has allowed him to work as a security guard prior to its reopening, he must face both his own fear of mirrors and the mystery surrounding the fire that closed down the mall.
Once taken her job because of her appearance, a confident and enthusiastic woman, Hyo-jung visits a mysterious yoga institute run by an ex-actress where her radically changed friend told her to go. At the intensive training course, a young yoga master, nani explains to Hyo-jung and four other girls that only one person who masters the course most successfully can get the secret of ultimate and immortal beauty. there are five rules for them to follow during the one week course: 1. do not eat, 2. do not take showers within an hour after the class, 3. do not look at the mirror, 4. do not go out of the building, 5. do not call anyone. As the training goes on, girls get tempted to break the rules caused by hidden craving of each girl’s and Hyo-jung starts to sense there is something about this institute and an actress who doesn’t get old…