Yeon-Hong (Son Ye-Jin) is married to Jong-Chan (Kim Ju-Hyeok) and they have a teenage daughter Min-Jin (Shin Ji-Hoon). Jong-Chan worked as an announcer, but he is about to run for election as a National Assembly member. Yeon-Hong is enthusiastic to help her husband’s election campaign. On the first day of Jong-Chan’s campaign, their daughter Min-Jin goes missing. Yeon-Hong becomes desperate to find Min-Jin. She is also devastated by her husband and those around him worrying more about his election campaign. Yeon-Hong begins a frantic search for clues on her daughter’s disappearance.