Park Jung-Gu (Byun Yo-Han) keeps failing to land a job. His only pleasure is to make homemade bombs. He hopes that someone will use bombs and mails them out to people he thinks may find the bombs useful. Nobody uses the bombs. One day, Hyo-Min (Park Jung-Min), filled with dissatisfaction with world, appears in front of Jung-Gu. Hyo-Min is willing to detonate Jung-Gu's bomb.