How many movies have Tatsuya Hamaguchi and Yoshihiro Yûki collaborated on?

They have worked on 6 movies together! Their first movie together was Romantic Tale: Otomi and Yosaburo (1972) while their highest rated movie together was Star of David: Beauty Hunting (1979). They have not worked together since Star of David: Beauty Hunting (1979). They are most known for their horror films together.