Do ghosts exist? What about Bigfoot or Skinwalkers? And how will we ever know? Journalist Tea Krulos spent more than a year traveling nationwide to meet individuals who have made it their life's passion to hunt down evidence of entities that they believe exist but that others might shrug off as nothing more than myths, fairy tales, or the products of overactive imaginations. Without taking sides in the debate, Krulos joins these believers in the field, exploring haunted houses, trekking through creepy forests, and scanning skies and lakes as they collect data on the unknown poltergeists, chupacabras, Skunk Apes (Bigfoot's stinky cousins), and West Virginia's Mothman. Along the way, he meets a diverse cast of characters—true believers, skeptics, and hoaxers—from the credible to the quirky, and has a couple of hair-raising encounters that make him second-guess his own beliefs.