Stoner (Mandarin Language Version) (1974)

aka's: Tie Jin Gang Da Po Zi Yang Guan/A Man Called Stoner/Hong Kong Hitman/The Shrine Of Ultimate Bliss/Tit Gam Gong Daai Poh Chi Yeung Goon/
鐵金剛大破紫陽觀

An Australian cop named Stoner (George Lazenby) heads to Hong Kong after he finds his sister dead from an overdose of a new drug known as “happy pills.” A mainland cop (Angela Mao Ying) is already working undercover on the case, and they team together to take down the crime syndicate. Also with Betty Ting Pei. (In Mandarin language, with English subtitles). Uncut and in widescreen format.