How many movies have Butz Ulrich Buse and Kilian von Keyserlingk collaborated on?

They have worked on 2 movies together! Their first movie together was Im Schatten der Angst (2019) while their highest rated movie together was Die Verteidigerin - Der Gesang des Raben (2023). They have not worked together since Die Verteidigerin - Der Gesang des Raben (2023).