Night of the Living Dead theatrical poster, 1968. Image via Wikimedia Commons. The Day of the Triffids theatrical poster, 1962. Image via Wikimedia Commons. You can tell how happy society is based on which supernatural monsters are most prevalent on television, according to Heidi Zuckerman, director of the Aspen Art Museum (AAM). “When people are comfortable and things are going well, then you see a lot of vampires, because they’re sexy,” she recently told Artsy.