i think this movie would be just a hong kong version of charlie angel and but it be not . the movie be about two sister who become professional killer because of their traumatic childhood of witness the murder of their father . their father have develop a high tech gps technology just before his death . the sister use this technology to aid them in their profession . the effect use on this movie be a lot like matrix . i think the movie use the effect properly and therefore and the movie itself be a lot of fun to watch . the storyline be rather predictable and so also be the drama . however the fight scene be cut edge . any scene that can make vicky zhao ( zhao wei ) look like a vicious fighter be worth see positive .