Sound pretty grim ? There's plenty of light relief. The nanny spends much time try to increase the size of her tiny boobs. The scholar has a few wild gadgets to get his wife horny. The scholar encounters a couple who fly around in the forest, having sex in the air (played by HK's top sexual athletes, Tsui Kam Kong and Julie Lee Wah Yuet). This scene would be worth the price of admission/hire alone, and is the sort of thing which is only possible in HK cinema. And the two scenes which rip off the main romantic theme in Ghost have to be seen to be believed.
The best comparison I can think of is with Sex And The Emperor. Love it or hate it, I can guarantee this is one film you'll find hard to forget.