There are a few very minor spoilers in this.
I bought the video for its English title (there was no review, even on IMDb) 'Revenge of the Iron Fist Maiden'. Obviously I was hoping for a maiden using her iron fists to take some revenge, and the opening is promising: Chie finds her father dying and goes looking for the mysterious Yuan, who killed him. Calling in on the local white-bearded monk for advice, she's told to find out why her father was killed, and to avoid bloodshed. How much she actually finds out, I'm not that sure: it's a complicated story, there are lots of characters with confusingly similar Chinese names and since 70% of the film is fight scenes, there's not much time for explanations. But the other sage advice goes straight out the window this movie has a big enough body count to earn it an 18 rating back then (though it would be about 12 nowadays).
Soon enough Chie is set upon by a mob of heavies. She's tall, athletic and obviously knows how to fight, but this is where it all goes wrong, for me at least. She's quickly overpowered, has to be rescued by a timely stranger, then disappears for the next half hour as we discover that he, not she, is the hero of this tale. Since his kung fu is no more convincing than hers (and he doesn't look half as good doing it) this is a big disappointment. Chie does return for some longer fights and a hilarious scene, where she rescues the unconscious hero by tucking him under her arm and running up a ladder, but she's again sidelined for the last 15 minutes, while the hero faces the main bad guys alone. In the Iron Fist Maiden department, this movie just doesn't deliver.
Really the acting, plot and direction aren't that important in a movie like this. It's all about the kung fu, which is competent rather than brilliant, with a variety of weapons used as well as fists and feet. At first it's rather dull and repetitive, later a water-wheel and some floating logs are introduced, and once the bad guys call in 'Ho and his brother' as reinforcements it becomes a bit more fun.
If you're not a fan of kung fu movies, this isn't the best place to start. If you are and you come across this now very rare movie (if you're reading this, maybe you already have) or it comes on TV then you'll probably enjoy it.