Her holiday escape was meant to be a silent retreat. A remote cabin, a stack of books, and the quiet solitude of a Korean winter. But a mix-up leaves Ahn Ji-won sharing her refuge with a man from her past—a charming architect she once shared a brief, intense encounter with under the city lights of Seoul. Forced together by a relentless snowstorm, they must navigate a cozy, confined space and the undeniable spark that still lingers between them.

As a fated connection unfolds amidst the twinkling Christmas lights and the scent of brewing coffee, they discover that some doors are meant to be opened, and some feelings are impossible to outrun. But can a love born in a winter wonderland survive the return to a world that tried to pull them apart?