Demons escape from hell on a mission to devour the essence of 49 individuals of extreme masculinity or femininity.
The police forces are on a mission to stop gunrunners dealing between Hong Kong and mainland China. Leading them is Hong Kong Superintendent Lau Chen Fai along with officer Sophia and a Shenzhen cop Kau. Leading the gunrunners is Master Tian, Lin Lo Hung, daughter of a communist official, and Shaw Lon from Taiwan.
