Vampire Circus

A Serbian village is cut off from the rest of the world by plague. The local doctor tries to procure some medicine from the outside world, along with his son Anton. Upon his return to the village, Anton finds a circus has been set up there; shortly afterwards people in the village begin to die mysteriously, their bodies drained of blood. It transpires that the 'circus' is populated by vampires able to change into animals at will, and is run by Emil, a cousin of the notorious Count Mitterhouse, killed by a stake through his heart some fifteen years earlier.