How many movies have Jussi Adler-Olsen and Søren Pilmark collaborated on?

They have worked on 4 movies together! Their first movie together was The Keeper of Lost Causes (2013) while their highest rated movie together was The Purity of Vengeance (2018). They have not worked together since The Purity of Vengeance (2018). They are most known for their thriller films together.