How many movies have Katharina Böhm and Su Pröbster collaborated on?

They have worked on 4 movies together! Their first movie together was Gefährliche Gefühle (2003) while their highest rated movie together was Ein Dorf schweigt (2009). They have not worked together since Das Geheimnis in Siebenbürgen (2012). They are most known for their tv movie films together.