Bona follows her best friend Dajeong — who is familiar with juvenile delinquency — along with Minchae who wanders along the streets at night. The thrilling midnight adventure gradually turns into borderline delinquency. Unexpectedly, the three friends are caught by the stranger whose house they broke into, and Bona becomes distant from her old friend, Dajeong, as only Bona manages to run away from the scene.