How many movies have Kazuomi Makitaka and Osamu Iwamura collaborated on?

They have worked on 9 movies together! Their first movie together was Honto Ni Atta! Noroi No Video 87 (2020) and was their highest rated movie together. They have not worked together since Honto Ni Atta! Noroi No Video 94 (2021). They are most known for their horror films together.