He was the groom she left at the altar. A year later, a snowstorm traps them in a single, Christmas-themed suite. Lee Jin-woo wants answers. Yoon-ah, the runaway bride, has a secret that could destroy his world.

As they're forced to confront their painful past, they uncover a dangerous conspiracy—one that threatens to bury them both. To survive, they must enter a high-stakes, fake-marriage pact. But with a second chance at love on the line, how long can they pretend before the lie becomes the truth?