If you've ever seen the movie Sex and Zen, I'll tell you right now that this 'sequal' has absolutely nothing to do with the first film. The premise for this film is that there is a scroll that tells one how to achieve immortality of the gods. There is a particular sorceress after this scroll. She begins to work her way through this particular family that has knowledge of this scroll by marrying the father, and killing him during sex to take his essense...she's very similar to a vampire in this regard. She then works her way down through the family until she is left with the youngest daughter who is the 'pure' one. By this point our villianess is sporting both sets of genetalia, and must outlast our heroine to achieve her immortality and be all powerful...as to the outcome, I'll leave that to you to see the movie.
This film had sprinklings of humor, but on a whole was a very very dark film. Whereas in Sex and Zen the comedy was the strength of the film. In some regards I guess it could be considered a comedy, but I felt it was a bit too dark to fall within the comedy genre. If you're a fan of Chinese Erotic films, you might enjoy this. However, if you expect something akin to Sex & Zen, you're in for a major disappointment.