How many movies have Jouko Lumme and Kristiina Valkeasuo collaborated on?

They have worked on 4 movies together! Their first movie together was Mommilan veriteot 1917 (1973) while their highest rated movie together was Men Can't Be Raped (1978). They have not worked together since Vartioitu kylä 1944 (1978). They are most known for their drama films together.