I have had the pleasure of seeing Simon Yam in more than a few films: My Left Eye Sees Ghosts, Election, Triad Election, Exiled, and more. Seeing him as the psycho serial killer in a Chinese true crime adventure was a real pleasure.
I have also seen many film's with Danny Lee: John Woo's The Killer, with Simon Yam and Kent Cheng in Run and Kill, and with Chow Yun-Fat in Code of Honor. As the detective in charge of this case, he puts forth another very good performance.
Lee also produced and directed this film along with "Billy" Tang.
This is a Cat III film, so the violence is extreme. There is a lot of blood and gore as he dismembers his victims. There is also nudity and necrophilia.
Based upon a real story, this taxi driver, who was excited from the rain and thunder, was a real psycho. Yam was perfect in the role.