Wai-Man Mok

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... (imdb)

In England, Dr. Greg Fong invents a super steroid (SS160) which can cure virtually all illnesses and disorders (including impotence and idiocy) and generally makes someone superhuman. But his obsession with the super drug, begins making him mentally unbalanced. (imdb)

Brothers growing up together in the Sau Mau Ping ghetto finsd themselves involved in a web of revenge, misunderstandings, and betrayal when one of them becomes the witness to a drug deal. (The Movie Database)