Between working at a publishing house and renovating a cabin in the Appalachian Mountains, Cora Lincoln is exhausted. When her first guest fails to show up at the cabin, Cora suspects nothing. A few days later, his body is found. Cora goes into detective mode, trying to help solve his murder that bears an uncanny resemblance to a teen who suffered a similar fate years before. Once strange things start happening at home, Cora starts to believe there's a supernatural force at play. Roping in her new friend Griffin, they start to unravel the details of the case and aren't ready for what they stumble upon. People say you should be scared of the monsters under your bed, but the monsters outside are so much worse.