The Butterfly Murders

A journalist attempting to solve a mystery in "Martial World" enlists the aid of a master fighter and a woman named Green Breeze. They go to a mysterious castle where they come across poisonous butterflies and a black-leather-clad killer.

The Butterfly Murders is a 1979 mystery horror movie directed by Hark Tsui, starring Chi-Chi Chen, Siu-Ming Lau, Michelle Yim. It holds an IMDb rating of 6.4/10 from 1,005 votes and runs 1h 28m.