Actor and writer Mark Gatiss has always had a love of storytelling, especially for the ghastly and the ghoulish, but has always wondered where it comes from. Setting out to research his ancestry, he is intrigued to discover that his mother's side of the family goes back five generations to the wilds of Northern Ireland. Travelling over there, he untangles a tale of rags-to-riches and learns that sure enough, his family were indeed story-tellers - but fascinatingly, they were also said to be vampire-slayers.