How many movies have Osamu Iwamura and Takato Nishi collaborated on?

They have worked on 8 movies together! Their first movie together was Honto Ni Atta! Noroi No Video 72 (2017) and was their highest rated movie together. They have not worked together since Honto Ni Atta! Noroi No Video 89 (2020). They are most known for their horror films together.