Bangkok Dangerous (2008)

Joe is a professional hitman who picks someone off the street to do his errands, and after he is finished kills that person. His next assignment takes him to Bangkok, and as usual, he finds a streetwise guy named Kong to help him. After Kong has a close call and learns who Joe is, Kong asks him to train him and he does. Joe also meets a local girl who is deaf and spends time with her, but he has a hard time keeping his other life from her. It also appears that the person who hired Joe has broken his rule of complete anonymity and tries to find him.