How many movies have Kei Sawada and Wataru Suzuki collaborated on?

They have worked on 5 movies together! Their first movie together was Mysterious! Unbelievable: Impact! Journey through the Terrifying Spiritual Hell (2012) and was their highest rated movie together. They have not worked together since Mysterious! Unbelievable: Shock! Approaching the Mystery of the Cursed Sealed Photographs that Kill People!! (2013). They are most known for their horror films together.