How many movies have Sherman Chow Gam-Cheung and Siu Nam collaborated on?

They have worked on 3 movies together! Their first movie together was Forbidden Love (1993) while their highest rated movie together was O.C.T.B. Case - The Floating Body (1995). They have not worked together since O.C.T.B. Case - The Floating Body (1995). They are most known for their thriller films together.