The default vampire has, for decades, been various flavors of dangerously sexy. This one is just plain gross. Photo: Aidan Monaghan/Focus Features The title character of Robert Eggers’s Nosferatu , played by Bill Skarsgard under heavy makeup, is every inch a monster. His skin has the greyish pallor of spoiled beef, dotted with scabs and open wounds. There’s only a little bit of hair left on top of his head, but it’s so long that it clings to his skull like shedded snakeskin. His pointy nails