Abby Ward lives in a town haunted by disappearances. People vanish, and when they're found, their bodies have been dismembered and sewn back together in unnatural ways. But is it the work of a human killer…or something far darker?

Josephine began to suspect something was wrong with the crumbling gothic monstrosity next door when its family fled in the middle of the night, the children screaming, the mother crying. They never came back. No family stays at Marwick House for long. No life lingers beyond its blackened windows. No voices drift from its ancient halls. Once, Josephine swore she saw a woman's silhouette pacing through the upstairs room… but that's impossible. No one had been there in a long, long time.

Some doors are locked for a reason.... While 11-year-old Nora Davis was up in her bedroom doing homework, she had no idea her father was killing women in the basement. Until the day the police arrived at their front door. Decades later, Nora's father is spending his life behind bars, and Nora is a successful surgeon with a quiet, solitary existence. Nobody knows her father was a notorious serial killer. And she intends to keep it that way. Then Nora discovers one of her young female patients has been murdered.

22-year-old Eileen goes missing while hiking in the remote Ashlough Forest. Five days later, her camera is discovered washed downriver, containing bizarre photos taken after her disappearance. Chris wants to believe Eileen is still alive. When the police search is abandoned, he and four of his friends create their own search party to scour the mountain range. As they stray further into the dark forest and the unsettling discoveries mount, they begin to believe they’re not alone in the trees and that Eileen’s disappearance wasn’t an accident.

Clare remembers the cold. She remembers abandoned cars and children's toys littered across the road. She remembers dark shapes in the snow and a terror she can't explain. And then... nothing. When she wakes, aching and afraid in a stranger's gothic home, he tells her she was in an accident, a crash in the snow. He claims he saved her. Clare wants to leave, but a vicious snowstorm has blanketed the world in white, trapping them together, and there's nothing she can do but wait.