Ang Lee 's latest film , `` Lust , Caution '' is a film-noir spy tale set in Shanghai . ` Every diamond demands the right setting to sparkle , and Tony Leung Chiu Wai 's generous performance as the enigmatic ` Lust , Caution '' is the follow-up to 2005 's Oscar-winning `` Brokeback Mountain '' Asian cinema icon Tony Leung Chiu-Wai and newcomer Wei Tang star . The story follows two undercover agents who are sent on an assignment by their superiors to infiltrate a Chinese Triad gang that has been smuggling drugs into Hong Kong for years.
Ang Lee 's latest film , `` Lust , Caution '' is a film-noir spy tale set in Shanghai . ` ` Lust , Caution '' is the follow-up to 2005 's Oscar-winning `` Brokeback Mountain '' Asian cinema icon Tony Leung Chiu-Wai and newcomer Wei Tang star . The story follows two undercover agents who are sent on an assignment by their superiors to infiltrate a Chinese Triad gang that has been smuggling drugs into Hong Kong for years.