Donnie Yen (Crouching Tiger, Hidden Dragon: The Green Legend, Hero) stars as Hahou, a former martial arts instructor imprisoned after accidentally killing an opponent. When a vicious killer (Wang Baoqiang, A Touch Of Sin) starts targeting martial arts masters, though, Hahou offers to help the police capture him in return for his freedom. Directed by Teddy Chan (star of Infernal Affairs 2) Kung Fu Killer is the adreleline-fuelled must-see martial arts blockbusters of the year.