When Jess and Clare Martin move from Williamsburg, Brooklyn, to their former college town in the Hudson River valley, they are hoping for rejuvenation-of their marriage, their savings, and Jess’s writing career.

They take a caretaker’s job at Riven House, a crumbling estate and the home of their old college writing professor. While Clare once had dreams of being a writer, those plans fell by the wayside when Jess made a big, splashy literary debut in their twenties. It’s been years, now, since his first novel. The advance has long been spent. Clare’s hope is that the pastoral beauty and nostalgia of the Hudson Valley will offer some inspiration.

But their new life isn’t all quaint town libraries and fragrant apple orchards. There is a haunting pall that hangs over Riven House like a funeral veil. Something is just not right. Soon, Clare begins to hear babies crying at night, see strange figures in fog at the edge of their property. Diving into the history of the area, she realizes that Riven House has a dark and anguished past. And whatever this thing is-this menacing force that destroys the inhabitants of the estate-it seems to be after Clare next…