How many movies have Toshikatsu Matsukaze and Yoshio Murai collaborated on?

They have worked on 5 movies together! Their first movie together was Rape Frenzy: Five Minutes Before Graduation (1977) while their highest rated movie together was Eros School: Feels So Good (1977). They have not worked together since Hurricane Rape (1979). They are most known for their drama films together.