Every winter, on a certain day, Ha-yeon looks forward to crossing paths with Cha Jun-ho, the man she has long loved. As her feelings grow beyond control, she seizes an unexpected opportunity and approaches him under a different name. Even if their relationship is built on unequal terms and twisted desire, she convinces herself that being by his side is enough. Believing she alone knows his true self, she clings to a fragile dream—one that was never meant to last. But when that dream shatters, it returns to her in the form of deeper obsession and madness.