Kuei ChihHung 桂治洪 20 December 1937 1 October 1999 was one of the most popular and daring filmmakers to work for the Hong Kongbased Shaw Brothers Studios directing more than 40 films throughout the late 1960s 1970s and early 1980s Known for his bold cinematic style innovative use of realistic onlocation shooting and often gritty controversial subject matter Kuei found critical and commercial success working in a variety of genres including the hardboiled crime drama of The Teahouse 1974 and its sequel Big Brother Cheng 1975 wuxia classic Killer Constable 1981 and the cult horror favorites The Killer Snakes 1975 and Hex 1980 Kuei often added subtle commentary to even his most mainstream projects depicting the poverty of the public housing police corruption and colonial government rule with an unflinching honesty