How many movies have Kai E. Bogatzki and Mario von Czapiewski collaborated on?

They have worked on 3 movies together! Their first movie together was La Petite Mort 2: Nasty Tapes (2014) while their highest rated movie together was Raw 3: The Revelation of Grete Müller (2015). They have not worked together since Rootwood (2019). They are most known for their thriller films together.