Legendary Assassin

Lang ya is a movie starring Jing Wu, Celina Jade, and Kara Wai. A female cop befriends a mysterious martial arts drifter, who turns out to be a deadly assassin.
An assassin who is fresh from his latest kill becomes stranded in an island, when he inadvertently befriends a female police officer. As the night progresses, the unspoken truth honored by the two sides of the law is broken. After the remains of a body that belonged to a drug lord and syndicate crime leader are found, chaos ensues and criminals ravage the once peaceful streets in a race against time to find the mysterious murderer that's loose and out for blood.