How many movies have Koichi Sato and Takahito Eguchi collaborated on?

They have worked on 1 movie together! Their first movie together was 最後の晩餐 〜刑事・遠野一行と七人の容疑者〜 (2011) and was their highest rated movie together. They have not worked together since 最後の晩餐 〜刑事・遠野一行と七人の容疑者〜 (2011).