Portrait Of A Serial Rapist (1994)

Organized Crime Bureau officer Lau Man-ching (Chan Kwok-bong) is assigned to the case and finds his work immediately hampered by potential witnesses who refuse to aid in the investigation. Studying the files for the past two years, Lau deduces that the crimes are all the work of one individual and narrows the possible locations of the next attack down to three housing estates. Unfortunately, the police stakeout the wrong building, leaving the culprit (Lee Kar-sing) free to strike again. (City Connection)