How many movies have H.P. Lundh and Ingvar Hirdwall collaborated on?

They have worked on 6 movies together! Their first movie together was Beck 17 - The Scorpion (2006) while their highest rated movie together was Beck 23 - The Silent Scream (2007). They have not worked together since Beck 24 - In the Name of God (2007). They are most known for their mystery films together.