Jae-hyuk is a man with a plan, a reclusive CEO haunted by a family tragedy. He needs a fake fiancée to secure a high-stakes merger, and Ji-yeon, a beautiful, innocent student drowning in debt, is the perfect candidate. Their contract is simple: a Christmas romance for the cameras, a clean break after the holidays, and a fortune that will save her family. But a stolen kiss under the mistletoe shatters their perfect arrangement. As their fake relationship begins to feel dangerously real, Ji-yeon stumbles upon the dark secret Jae-hyuk has been hiding for two decades-a crime that turned a family into a web of deceit and betrayal. Now, she must choose between the safe life she was promised and a terrifying truth that could either set them free or get them both killed. In a world of lies, their love is the one thing they can't afford to lose.