Profs and Pints Nashville presents: “They See You When You’re Sleeping,” a crash course on Krampus, Yule trolls, and other frights of the holiday season, with Cory Thomas Hutcheson, folklorist, lecturer at Middle Tennessee State University, and author of New World Witchery: A Trove of North American Folk Magic.

Professor Hutcheson introduce you to the roving Christmas witch La Befana, the belly-slitting beaked women known as schnabelperchten, and, of course, the terrifying devil-creature known as the Krampus. He’ll also summon up lesser demons of the season, including the grumpy Belsnickel of Pennsylvania, a wide assortment of Scandinavian holiday imps, and Iceland’s Jólakötturinnhe, or Christmas Cat, which grows chonk from the consumption of unlucky people.

So come prepare to have yourself a scary little Christmas. You’ll have plenty of time to beg the elf on the shelf not to snitch. (Advance tickets: $12. Doors: $15, or $13 with a student ID. Listed time is for doors. Talk starts 30 minutes later.)