City on Fire (1987)

Overview

Ko Chow juggles multiple pressures as an undercover officer. Tasked by Inspector Lau to infiltrate a vicious gang of jewel thieves, he faces conflicts on all fronts. His girlfriend demands a commitment to marriage or she'll leave Hong Kong with another man, while other officers hunt him down, oblivious to his true identity. Caught between loyalty to his newfound friends in the criminal world and the weight of his duties, Chow grapples with guilt and contemplates abandoning the force altogether, torn between love and duty.