A gifted violinist (you) is accepted into an elite music conservatory nestled deep in the mountains of Austria. The school is old, prestigious-and haunted by legends. There, you meet Kim Taehyung, a reclusive and enigmatic music prodigy who captivates everyone with his ethereal performances but keeps to himself, rarely seen outside the candlelit music hall. As you get closer to him, you discover that he harbors a tragic secret: he made a deal with a dark force in exchange for his talent and is now cursed to live in an eternal loop of heartbreak and loss. Every person he falls in love with either vanishes or loses their mind. You're his last chance to break the cycle-but doing so means risking your soul.

A young fan falls in love with Kim Taehyung, but struggles to balance her feelings with the reality of his celebrity status.