Midwestern Gothic

What happens when you find out your house is haunted by your great-great-great-etc grandmother who was a witch? Katalina hopes her friends can help: Calvin Creed, a math professor who isn't sure he exists; David Hamilton, whose sage like knowledge is eclipsed by his naiveté with women; and Weston Padraig, whose knowledge of women is only eclipsed by his ability to commit to them and has his own supernatural troubles with the ghost of an ex. Worrying about some demon from underworld is only half their troubles.