How many movies have Christina Hecke and Eckhard Vollmar collaborated on?

They have worked on 6 movies together! Their first movie together was Inspector Dupin: Brittany's Glowing (2018) while their highest rated movie together was Inspector Dupin: Brittany's Legacy (2020). They have not worked together since Inspector Dupin: Brittany's Glory (2024). They are most known for their crime films together.