Bangkok Dangerous movie

A professional hit man, who picks someone of 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 street kid named Kong to help him. After Kong has a close call and learns who he is, asks him to train him and he does. He also meets a local girl who is deaf and spends time with her. However, has a hard keeping his other life from her, and it also appears, the person who hired him, breaks his rule of complete anonymity and tries to find him.