Saige Chambers, Arcane Bioengineering student and blood witch, is constantly anxious and chronically over-prepared. When Saige and her fellow witch doctoral candidates depart for a conference, she plans and anticipates every last detail. Except – she’s not prepared for the moment their bus turns off the highway and takes them to a remote mansion in the Appalachian Mountains, the gates sealing shut behind them.

The mansion’s owner, Arius Medea, issues a simple mandate: fix his injured, rotting leg or die. But it’s no ordinary injury – the flesh melts off the bone, emitting waves of foul magic that set Saige’s blood alight. Saige’s colleagues want to fight back and escape. Saige thinks their best chance is to fix him fast and get out. As tensions rise, Saige finds herself growing closer to Vaishnavi Sri, a poison witch and Saige’s long-term crush. But first impressions can be misleading, and as Saige’s reluctant attraction to Arius grows, she begins to wonder if there’s a better life waiting for her in the walls of this mansion.

But, as one by one, Saige's colleagues start to disappear, Saige realizes that dying may not be the worst option – because there are far worse fates lurking in the woods.