Se Hee (Sung Hyun Ah) and Ji Woo (Ha Jung Woo) have been together for years, but their relationship is slowly dying down, their love changing into a mere mildly pleasing familiarity. To solve her problems, Se Hee makes a drastic decision: change her facial appearances completely through plastic surgery and start a new life. Weeks later, Ji Woo meets a strange waitress at a cafe. She calls herself Sae Hee and, even though he's never seen her before, something feels strangely familiar...