How many movies have Hidetoshi Kageyama and Shin Takada collaborated on?

They have worked on 19 movies together! Their first movie together was Toruko saishin tekunikku: Kyuzetsu (1976) while their highest rated movie together was Zoom In: Rape Apartments (1980). They have not worked together since Joshidaisei: Kairaku Ayame-ryô (1980).