Eunsae and Joohwan are the perfect couple--or so the world believes. Behind the façade lies a cold arrangement: a marriage of convenience orchestrated by two powerful families. But their carefully planned union takes a dramatic turn when Joohwan is involved in a devastating car accident. As chaos unfolds, Eunsae's life spirals further into darkness when she is abducted by the enigmatic French mafia boss, Louis de Léon, and confined to his luxurious-yet suffocating-palace. Will she break free from her gilded cage, or will Louis's dark world consume her?