Leonard Nimoy was so impressed with Lesley Ann Warren when they worked together on the fifth season of Mission: Impossible that he cast her for the role of Hyacinth when he was hired to direct this episode.

Based on the short story "The Canal" by Everil Worrell. The story was first published in Weird Tales (December 1927).

Host: We offer you both tricks and treats in this special realm, where the national dish is pumpkin, the national flower is wolfsbane, and our national anthem is the funeral march, which should give you some definitive idea as to the nature of this place. We show paintings like this one. In a color scheme of blood-red sky with corpse-white moon, this, we tell you up front, is a story of vampires. And of course this must conjure up images of Bela Lugosi and Christopher Lee, somewhat frigid, malevolent, monstrous creatures. But reserve such all-conclusive judgment of the living dead until you hear the story of a particular vampire, the kind you might find in a place like this, the Night Gallery.