Canto-superstars Leon Lai & Ekin Cheng team-up in Benny Chan's cop thriller "Heroic Duo"! They are backed up by Francis Ng and Karena Lam in this rare movie delight that presents a kind of mixture between "Infernal Affairs" and "Color of Truth". Leon Lai plays hypnotist Li Shang Zheng who has been imprisoned because of an unsettled conflict with the triad. As the story evolves Li uses his hypnotic skills on police inspector Li Wen Jian (Ekin Cheng) who therefore engages in criminal activities Featuring a top-notch cast, the production costs of "Heroic Duo" consumed an incredible $30 million . Ekin Cheng changed his Witty image and personally took care of quite a few very high demanding stunts. Leon Lai on the other hand spared no efforts to gain 10 pounds shortly before the shootings began to make his scenes as convict appear even more realistic. The scene in which Ekin Cheng and Leon Lai meet in the confines of the prison carries has a little bit of the flair and the atmosphere of the Hollywood blockbuster "Silence of the Lambs", which adds even more to this production's cinematic appeal.