Hong Kong starlet Brigitte Lin stars in a masterful swordplay classic as the protector of a magical lyre with destructive forces which can only be unleashed by a skilled musician. In ancient China the land is ruled by six clans struggling for power. Each clan wants to possess the "Demonic Strings", a mystical lyre which will guarantee them supremacy over the populace. Joining forces, the clans ruthlessly Attack the guardian of the lyre and his family, and in the chaos the only ' two survivors are separated: the son Lui Lun (Yuen Biu) and his older sister Snow (Lin), who escapes with the instrument. After years of patient practice, Snow has finally mastered the instrument and now seeks her revenge. Reuniting with her brother, Snow sets out to find the men who killed her family for a spectacular showdown between the forces of good and evil.