How many movies have Dick DeBenedictis and Peter Katz collaborated on?

They have worked on 12 movies together! Their first movie together was Perry Mason: The Case of the Murdered Madam (1987) while their highest rated movie together was Perry Mason: The Case of the Silenced Singer (1990). They have not worked together since Ray Alexander: A Menu for Murder (1995). They are most known for their mystery films together.