How many movies have Shinji Yamada and Yoshihiro Kawasaki collaborated on?

They have worked on 11 movies together! Their first movie together was Flesh Target: Rape! (1979) while their highest rated movie together was Red Violation (1980). They have not worked together since Shinderera Ekusutashii: Kuroi Hitomi no Yūwaku (1988). They are most known for their drama films together.