阿亚(郭富城饰)是生于泰困的华裔，自幼冈双亲失踪向孤苦零丁，他一直向往能够成为一名警察，但是冈为双眼高度近视而未被录取，最终迫于生计而成为一名私家侦探。为了谋生，在唐人街处理一些男女纠分、鸡鸣狗盗之类的小案子。
一天，阿亚的朋友肥龙(成奎安饰)请他追查一名女子下落，唯一的线索只有一张被烧掉一半的照片。起初以为又是一宗男女纠纷的事情，是随着案件调查的深入，阿亚发现事情可能不是那么的简单。
阿亚找到在警察局工作的风泽帮忙，没想到风泽在询问这个案子之后，竟叫他尽快停手。此时，阿亚之前调查过的知情人丌始一个一个的神秘死亡，线索被一只神秘的黑手一条一条的剪断，而阿亚决心调查到底。
He must go into the darkest corners of the most twisted minds to protect the innocent.
From the critically acclaimed director Andrew Lau comes a heartstopping psychological thriller about a hyper-vigilant agent (Gere) and his female protégé (Danes) who must track down a missing girl. Working against the clock they unravel the twisted details to track the potential ....
No name, no past, nothing to lose.
Shoot 'Em Up is a wildly edgy and inventive action movie with a dark sense of humor which promises to take audiences on a non-stop high-speed ride.
Clive Owen portrays Mr. Smith, the angriest, most hardboiled man in the world, who finds himself entrusted to protect the most innocent thing of all -- a newborn child. When Smith delivers the baby in the middle of a gunfight, he soon discovers that the infant is the target of a shadowy force that has sent a team of mysterious and endless assailants, led by Hertz (Paul Giamatti), to erase all traces of the baby.
Amid a hail of bullets and facing every conceivable permutation of gunfight, Smith teams up with a prostitute named DQ (Monica Bellucci) to solve the mystery as to why the baby's life is being threatened before this makeshift family all ends up on the wrong side of a bullet. Everyone wants the baby dead. The big question is why?
An infamous assassin, named Rogue, sets off a crime war between rival Asian mobs. An FBI agent is determined to bring down the killer after his partner is murdered.
