How many movies have Michael Bouterweck and Wolfgang F. Henschel collaborated on?

They have worked on 3 movies together! Their first movie together was Die unheimlichen Briefe (2002) while their highest rated movie together was Das Haus der toten Augen (2002). They have not worked together since Das Haus der toten Augen (2002). They are most known for their crime films together.