How many movies have Dean Hargrove and William R. Moses collaborated on?

They have worked on 30 movies together! Their first movie together was Perry Mason: The Case of the Lethal Lesson (1989) while their highest rated movie together was Perry Mason: The Case of the Heartbroken Bride (1992). They have not worked together since Jane Doe: Eye of the Beholder (2008). They are most known for their tv movie films together.