Within the walls of Shum Castle, a flock of butterflies seems to have acquired a taste for blood. In this complex tale, a classic of Hong Kong cinema, writer Fong, who knows nothing of martial arts, unravels the mystery with the help of his fearless female companion, the lovely Green Shadow. Together they face robots from the future, the aforementioned butterflies, and martial artists from their present.
by Clarke Fountain synopsis
mystery [unexplained phenomenon]