The film revolves around Han Se Kye (Seo Hyun Jin), a famous actress but also the center of rumors. In fact, Han Se Kye suffers from a strange syndrome. At some point during the month, her appearance will change and turn into another person. She will have to live in this body for a week every month. One day, Han Se Kye met Seo Do Jae (Lee Min Ki), a board member of an airline. Smart, handsome, Seo Do Jae in many people's eyes is a perfect marshal. But few know he has "blindness". Unable to distinguish the faces of others, Seo Do Jae tries to hide his flaws by trying to memorize people through their habits and actions. The only person he can identify with the main face is Han Se Kye. The meeting with the beautiful actress changed his life.