How many movies have Kinya Ogawa and Kyôichi Tsugawa collaborated on?

They have worked on 3 movies together! Their first movie together was Love Foolery Case for a Severed Head (1967) while their highest rated movie together was The Dismembered Ghost (1968). They have not worked together since New Ghost Story Heretic Lust: Oiwa's Vengeful Ghost (1976). They are most known for their horror films together.