In imperial China, a mysterious white-haired swordsman appears at every murder scene, communicating only through his haunting flute. While the empire trembles before the "White Ghost," behind palace walls dwells an equally enigmatic figure: a princess who has never shown her face, known only by her blood-red robes and deadly martial arts. As bodies pile up and conspiracies deepen, these two figures are drawn into a web of deceit where nothing is as it seems—for the White Ghost has a twin he doesn't know exists, and the veiled princess fights enemies within her own family who wear the warmest smiles while plotting the coldest betrayals.