Spider Woman

A crime / revenge movie loaded with gory torture sequences, including acid in the shower, a pick-axe killing and a lovely scene where a man is tied to a cross and killed with the titular critters. Scenes from this later ended up in the IFD / Godfrey Ho mishmash Majestic Thunderbolt (1985).

A formidable assassin, Shui Yi Han, sporting his trademark umbrella sword, arrives at the abode of his victim, and ruthlessly dispatches him down a well. This prelude sets the tone for the story: crisp, atmospheric and clinical. Famed novelist/screenwriter Ku Long is listed in the credits as a 'planner' for this film, and the themes and execution certainly bear his hallmarks.