Mi-ae, a middle aged woman is facing a midlife crisis not unlike those shared by countless others. A mother of three, the wife of a relatively prosperous bank executive, and a woman who enjoys a comfortably middle-class existence, Mi-ae grows increasingly frustrated by her two sons’ demeaning behavior towards her, her boorish husband’s unforgivable cheapness, and her own sadness at never having felt for herself the joys of true love — something she becomes acutely aware of when observing her estranged daughter’s loving relationship with another woman. After abruptly leaving a disastrous anniversary evening arranged by her thoughtless husband, Mi-ae meets the shy and kind Soo-nim, her youngest son’s schoolmate. Choosing to spend a long evening with Soo-nim rather than return home to the male members of her family, Mi-ae finds herself irresistibly drawn to this gentle young woman as a flood of emotions sweeps Mi-ae away on an unexpected journey of self-discovery.
Bo-hee, a 14 year old boy, was raised by a single mother and has always thought his father had passed away. Bo-hee hears that his father may be alive, and he sets out in search for him with his best friend Nok-yang. He finds his half sister on the way and forms a friendship with her boyfriend.
Se-ha who is a physically handicapped and Dong-gu who is a mentally handicapped are not their own brothers. But while living 20 years together, the two became indispensable to each other. One day, the mother of Dong-gu suddenly visits him and acts as his guardian.
Park Jung-gu sends out homemade bombs to people he finds online who are likely to use them, yet these devices are unused. One day, Jung-gu meets Lee Hyo-min, a delinquent student at his university and sends him a package. Soon an explosion in a delivery truck hits the news. Before long, Hyo-min discovers who is sending him the packages and the two form a tenuous relationship. However, Hyo-min's unpredictable behavior becomes dangerous and Jung-gu finds himself caught in a situation that he can no longer handle.
Dong-sik and Sung-woo, they're best friends. Sung-woo is dying with late-stage liver cancer. Sung-woo, being drunken, confesses that he has been loved Dong-sik's wife, Sujin for a long time.
Strict teachers, all those hours inside four walls, all your desires and youthful energy repressed. School is an endless drag - until she comes along. Uhm Ji Young has a perfect body and metric tons of sex appeal, and she knows it. Needless to say, all the students go crazy, and the male teachers too! They should be preparing for the annual school festival, but they're all occupied with other matters.