During the 1990s, hardworking Mi-soo and optimistic Hyun-woo meet at a bakery and fall in love while exchanging stories on a radio station, but while their paths keep crossing, the timing never seems to work out.
With the death of her long-time director, Chan-sil, a film producer, is now unemployed. While working as a cleaning lady at an actress' house, she meets a young man. Attracted to him, Chan-sil realises old anxieties are about to emerge: her already gone-youth, messed-up love life, and broken career.
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.
