Kung fu instructor Hahou Mo (Donnie Yen) is serving a prison sentence for the accidental death of an opponent during a duel. When he sees a news report on the prison TV about the murder of a top martial artist, he believes that he can help the police to find the person responsible (who turns out to be a highly skilled fighter with a gimpy leg, as played by Baoqiang Wang).
While not exactly boasting the most inspired or original of plots (the story is reminiscent of all those old school kung fu films in which a villainous martial artist kills the good guys to prove he's number one), Kung Fu Killer is still a case of Donnie Yen proving to his detractors that he's still got it. Almost two and a half decades after he wowed audiences in In the Line of Duty IV, he is more than capable of choreographing and performing jaw-dropping scenes of martial arts mayhem.
I admit I was a tad doubtful at first, the initial fight scenes not grabbing me in the way I had hoped, but with each successive battle getting more and more elaborate and increasingly brutal, the film eventually won me over, the final showdown on a busy freeway being an incredible tour-de-force of kung fu excellence (with a truly wonderful spot of pole fighting midway). Admittedly, the fights are not without their use of CGI and wirework, but that's become fairly standard for modern action films, and the technology is used well in this instance. I for one am just happy to see Donnie still leaping about and doing what he does best. May he long continue to do so.