July 1995. April and Eddie have taken a wrong turn. They’re looking for the small resort town where they plan to spend their honeymoon. When they spot what appears to a lone hitchhiker along the deserted road, they stop to help. But not long after the hitchhiker gets into their car, they see the blood seeping from her jacket and a truck barreling down Atticus Line after them.

Oxford student Jillian Leigh works day and night to keep up with her studies—so to leave at the beginning of the term is next to impossible. But after her uncle Toby, a renowned ghost hunter, is killed in a fall off a cliff, she must drive to the seaside village of Rothewell to pack up his belongings. Almost immediately, unsettling incidents—a book left in a cold stove, a gate swinging open on its own—escalate into terrifying events that convince Jillian an angry spirit is trying to enter the house.

In 1977, Claire Lake, Oregon, was shaken by the Lady Killer Murders: Two men, seemingly randomly, were murdered with the same gun, with strange notes left behind. Beth Greer was the perfect suspect - a rich, eccentric 23-year-old woman, seen fleeing one of the crimes. But she was acquitted, and she retreated to the isolation of her mansion.

In 1919, Kitty Weekes, pretty, resourceful, and on the run, falsifies her background to obtain a nursing position at Portis House, a remote hospital for soldiers left shell-shocked by the horrors of the Great War. Hiding the shame of their mental instability in what was once a magnificent private estate, the patients suffer from nervous attacks and tormenting dreams. But something more is going on at Portis House—its plaster is crumbling, its plumbing makes eerie noises, and strange breaths of cold waft through the empty rooms.

Vermont, 1950. There's a place for the girls whom no one wants - the troublemakers, the illegitimate, the too smart for their own good. It's called Idlewild Hall. And in the small town where it's located, there are rumors that the boarding school is haunted. Four roommates bond over their whispered fears, their budding friendship blossoming - until one of them mysteriously disappears.... Vermont, 2014. As much as she's tried, journalist Fiona Sheridan cannot stop revisiting the events surrounding her older sister's death.