Do ghosts, vampires, and zombies actually exist in our world? Explore some strange tales of the unexplained in this two-disc set of National Geographic programs! In "The Truth Behind: Zombies," "Is It Real?: Hauntings," "Witchcraft: Myths and Legends," "Is It Real?: Vampires," "Is It Real?: Bigfoot," and "Taboo: Devils and Demons," viewers can compare the ancient lore with the modern evidence. 4 1/2 hrs. total. Widescreen (Enhanced); Soundtrack: English; Subtitles: English (SDH).