To support her family and pay off her mother’s debt, Eun-Soo (Lee Ha-Na) works at a dentist clinic during the day and part-time work at night. She is 36-years-old and still single. She hopes to one day live her life for herself and not her family. The time to achieve her dream comes and she finishes paying off the loan. Something happens though.

A pastry chef apprentice lives unaware she becomes a wild she-devil nightly. Her family hires their neighbor to watch her night version, as he falls for her day self while seeking to break her curse.

A film depicting the process of the main character, a victim of school violence, escaping from bullying and implementing justice.