Heart of a Dog (1988)

In the wake of the Russian revolution, a starving dog is rescued from the streets of Moscow by a cultivated professor. The professor experiments on the dog, who soon begins to transform into a man. The Bolsheviks downstairs are pleased: after all, those who live lives fit for dogs deserve better. Yet how will the professor cope with this strange animal? Is it still possible to keep him on a leash? Or will he bite?