How many movies have David A. Hamade and Edzard Onneken collaborated on?

They have worked on 4 movies together! Their first movie together was Die Frau des Schläfers (2010) while their highest rated movie together was Bella Casa: Hier zieht keiner aus! (2014). They have not worked together since Bella Amore - Widerstand zwecklos (2014). They are most known for their tv movie films together.