Film buffs will note that the image below is not from F W Murnau's 1922 film, Nosferatu, but instead from the 1979 remake by Werner Herzog, starring the inimitable Klaus Kinski.
From sleep of years or merely hours,
they waken, pale throats parchment dry,
possessed of hunger that devours.
Each an emerging butterfly,
they crawl from caskets on all fours
to seek fresh prey, their blood-supply.
They enter, not deterred by doors,
like ghastly lovers, stealthy, sly,
to sup and plant their loathsome spores.
Watch F W Murnau's classic here.