Jeon-mo is a former firefighter and a passionate father of his two little children. One day his life is collapsing when his daughter is missing. Before Jeon-mo is able to call the police, he is contacted by the mysterious man who kidnapped the girl. But instead of money, the abductor orders Jeon-mo to kidnap another child in exchange for the life of his daughter.
Jeon-mo is a happy florist, leading a peaceful life with his wife and two young children. But his world is thrown into chaos when his daughter is kidnapped on her way home from school. Jeon-mo obeys the kidnapper's ransom demands and heads to a designated drop-off point with the money. But he's late again and again when the meeting place is changed over and over. When the kidnapper decides on a penalty for Jeon-mo's tardiness, it is in the form of an unfathomable task that will drag him deeper into an increasingly tangled web of conflict.
