The new screen studies on the hardships of secret agents continue with Billy Chungís Undercover, zeroing in on identity crises faced by an infiltrator. Several years after a spying job, coke-snorting young cop Feng watches his old gangland pal shoot a policeman. When the friend goes on the run, Feng further questions his loyalties while still battling the emotional torment of his old covert duty - work that cost him both family and friends. Smoothly lensed in lurid, neon hues, Chungís sordid character study drives home that an informerís lot is anything but plain sailing. (HKFF)