spate of bizarre murder , Taipei police helpless . Although these three cases was the same serial killer is , but police were clueless and had to resort to the United States Federal Bureau of Investigation expert Kevin Wright ( David Holmes ornaments ) to assist in the investigation . Yellow fire, earth , Criminal Division ( Tony Leung Ka Fai ornaments ) and Kevin Wright found that the suspect is a rare ancient Taoist Figure killings , also indicates that there are two of the victims is yet to come . In the end , they are looking for is a serial killer or an evil in order to become immortal soul ?