The best Suki Kwan’s thriller movies

Rookie policeman Shing (Louis Koo) grapples with right and wrong in this action-packed story about Hong Kong gangsters. Assigned to go undercover, Shing is so successful in playing the part of a gang member that he becomes right-hand man to gang leader Fei Ling (Andy Lau). Shing comes to respect Fei Ling and question his original motives, but the troubled cop must make a crucial decision before rival gangs and impatient cops move in for the kill.

CIA agent turned HIV positive sexual predator Daniel (Ben Ng) uses his wealth and collection of high-tech gadgets to prey on unsuspecting women. After arranging for the prison breakout of notorious rapists "Rain Killer" Chan Kok-Wan (Ankee Leung) and "Tuen Mun Rapist" Ko Sheung-wai ( Chan Chi-Fai), Daniel invites the men to ravage the two women he has chained in the basement. He next sets his sights on Kwan Shi-han (Suki Kwan), the romance novelist next door, but, first, preys on her movie star friend, Icy (Yeung Fan). Desperate for a lead, the police consult a semi-reformed deviant known as "The Human Milk Drinking Doctor" (Anthony Wong), who used to prey on lactating women and now controls his sexual urges by working as a porno theatre projectionist.

A computer engineer is kidnapped and tortured. Since then, his girlfriend senses he's no longer the same person, and becomes convinced that something supernatural is corrupting his soul. The cop assigned to the case is also determined to get to the bottom of the case. The truth is more frightening than either had anticipated.