It is a good thing that Season 3 of Wu Xin: The Monster Killer is actually a prequel, set centuries before Seasons 1 and 2. It is somewhat predictable, but Season 3 eventually explains why Wu Xin goes into a deep sleep every 100 years, (it's not something inevitable although he might not realize it) after which he forgets (almost) everything. It is not directly stated, but this memory erasure is probably also why Wu Xin does not have any magical powers except for using his blood to kill evil beings--he actually used to have some magical powers, but his memory erasure may also mean that he has no recollection most of his powers. The beginnings of Wu Xin's friendship with Bai Liu Li, alluded to in Season 2, is also explained.

Of the three seasons, Season 3 probably has the best romance plot, which is quite nicely integrated into the main story. Sabrina Chen (the villain in Season 1, and another character in Season 2) plays Wu Xin's love interest in Season 3. For reasons unknown, Sabrina Chen gets to play a male character again (like in Season 2), though it makes sense in Season 3 because there is a pair of male/female identical twins in the story.

The supernatural aspects of the story, on the other hand, doesn't turn out to be as strong. Like a detective series that moves on from one murder case to another, Wu Xin Season 3 moves from one supernatural case to another before finally getting to the central supernatural antagonist. Then in the final episode ... I'm not even sure how the villain is defeated.

On the other hand, beyond the supernatural villains, the human characters are interestingly complex. Some of the most detestable characters have rather poignant moments in the series. The male twin played by Sabrina Chen is also morally ambiguous in a convincing way. Chen's performance is excellent as she not only manages to play both the male and the female twins well but also manages to pull off some scenes when the two twins inhabit the same body (and the personalities get a little mixed).

Elvis Han is simply be playing Wu Xin yet again without much room for him to impress us with his acting. However, the pathos in the character of Wu Xin is surfaced quite well--his immortality brings him misery as he is doomed to repeatedly experience the agony of being separated from people he has affections for no matter how long he lives happily with them: he can have both happily and ever after, but he can't have happily ever after.

Season 3 can either be a satisfying end to the Wu Xin series or pave the way for a Season 4, which I won't mind. Perhaps one set in the contemporary era?