How many movies have Masao Yagi and Yumiko Katayama collaborated on?

They have worked on 5 movies together! Their first movie together was Shameless: Abnormal and Abusive Love (1969) while their highest rated movie together was Farewell to Rock'n Roll (1973). They have not worked together since Criminal Woman: Killing Melody (1973). They are most known for their crime films together.