How many movies have Fritz Karl and Günter Knarr collaborated on?

They have worked on 4 movies together! Their first movie together was Inspektor Jury - Der Tote im Pub (2014) while their highest rated movie together was Inspektor Jury spielt Katz und Maus (2016). They have not worked together since Inspektor Jury - Der Tod des Harlekins (2018). They are most known for their crime films together.