"Double Vision" is part police thriller and part horror movie. As an Asian horror movie, "Double Vision" uses Taoism for its foundation. It also takes the serial killer motif from West to East, combining David Morse with Tony Leung, as the respective nationals and investigators for the United States and Taiwan.

"Double Vision" is an ambitious project with Hollywood backing and the requisite CGI. The investigation of a cult and its members was intermixed with Leung's domestic struggles. "Double Vision" uses a common plot and spices things up with some Eastern mysticism. By bringing David Morse in, the movie explores themes that are both foreign and universal, exposing the commonality among the police and the killers they hunt.

Although Leung's domestic problems are part of the film's payoff, they become part of the film's pacing problems. As the film shifts back and forth between Leung's domestic struggles and the serial killer investigation, it starts and stops and loses its momentum.

There are many fine thngs about "Double Vision," but the movie was in need of editing. Too much was thrown into the script. The film needed to strip away the tangential elements and emphasize the investigators and their work. By having all of the filler, the story rambles a bit too much and loses focus. Director Chen Kuo-fu does an able job, but tries too hard to please. "Double Vision" does stall once in a wile, but is generally entertaining.