Charming Couple
More on that that Goth couple that killed their victim, drank his blood, then shagged in coffin. The female went on a Satan-themed tour of the UK, but got into vampiric blood drinking in an underground London club. When she returned to Germany, she used to hang out in graveyards with similarly inclined friends, drinking blood sent by donors over the Internet.
They look like a charming couple.
Earlier here.