How many movies have Nikolai Merzlikin and Vladimir Nikitin acted in together?

They have worked on 3 movies together! Their first movie together was I'm Staying with You (1981) while their highest rated movie together was 86400 секунд работы дежурной части милиции (1988). They have not worked together since Night of the Long Knives (1990). They are most known for their crime films together.