How many movies have Nikolay Karetnikov and Tatyana Lavrova collaborated on?

They have worked on 3 movies together! Their first movie together was The Voice (1982) while their highest rated movie together was Proceed to the investigation. Film 1: Version (1986). They have not worked together since To proceed with the investigation. Movie 2: Slander (1986). They are most known for their mystery films together.