Pianist Lin Xia received a mysterious invitation to attend a private concert at Rose Manor, which had been abandoned for fifteen years. The owner of the manor, Gu Mingyuan, is elegant and strange. His appearance reveals Lin Xia's dusty memory: she is not an orphan, but the twin sister of the missing piano genius Lin Xue. Fifteen years ago, Lin Xue left the protective necklace to Lin Xia in order to escape Gu Mingyuan's blood contract curse. Now, Gu Mingyuan mistakenly recognized Lin Xia as his bride and tried to complete the unfinished contract. With the help of the manor's assistant, Lin Xia gradually uncovered the truth: Gu Mingyuan is an immortal demon, and her sister has already become his victim. Facing the curse of the bloody moonlight, Lin Xia must use music to end this fifteen-year nightmare, avenge her sister, and win freedom for herself.
