Han Kyul gives his family's café a new spin, hiring only good-looking men to work there — plus an androgynous-looking girl he mistakes for a man.

Two friends in the past were victims of serious school bulling. One could not resist his trauma, and becomes a serial killer, walking in the path of revenge. Another one tries his best to overcome the trauma and becomes a police detective. He now faces tragic fate to risk his life to capture the serial killer.