Soho, London's Chinatown, is devastated by the clash of the bands from opposing factions of the Triad, the infamous Chinese Mafia. It's a bloody war that's been going on for a long time, where Liu and her younger sister Zhang illegal immigrants become unwittingly involved. The two sisters somehow seem to be protected by ancient and powerful forces, but to save them Dylan Dog will have to face the myths of a millenary culture.