After a devastating loss, Brynn Wilder escapes to Wharton, a tourist town on Lake Superior, to reset, and checks into a quaint boardinghouse. In her fellow lodgers, she finds a friendly company of strangers: the frail Alice, cared for by a married couple with a heartbreaking story of their own; LuAnn, the eccentric and lovable owner of the inn; and Dominic, an unsettlingly handsome man inked from head to toe in mesmerizing tattoos. But in this inviting refuge, a mystery begins to swirl. Alice knows things about Brynn, about all of them, that she shouldn’t.

In Metsan Valo, her family home on Lake Superior, Anni Halla’s beloved grandmother has died. Among her fond memories, what Anni remembers most vividly is her grandmother’s eerie yet enchanting storytelling. By firelight she spun tall tales of spirits in the nearby forest and waters who could heal - or harm - on a whim. But of course those were only stories.

When Eleanor Harper becomes the director of a renowned artists' retreat, she knows nothing of Cliffside Manor's dark past as a tuberculosis sanatorium, a "waiting room for death". After years of covering murder and violence as a crime reporter, Eleanor hopes that being around artists and writers in this new job will be a peaceful retreat for her as much as for them.

College professor Stephen Barlow needs cash. Badly. He puts his skepticism aside and signs on to a paranormal research organization in the hopes of scoring a fat bonus. Enter Chaythe Asylum: a long-shuttered and controversial institution where patients were allegedly subjected to unethical experiments. Stephen deems the old building, closed in 1989 after a series of grisly murders, as good a place as any to explore the possibility of the supernatural, and arranges to take a tour with his students. But it turns out that the asylum is not as abandoned as it seems. There is something sinister in the building.

When journalist Ava Brent decides to investigate the dark mystery of Overtoun Estate — a "thin place", steeped in myth — she has no idea how dangerous this story will be for her. Overtoun looms over the town, watching, waiting: the locals fearful of the strange building and the secrets it keeps. When Ava starts to ask questions, the warm welcome she first receives turns to a cold shoulder. And before she knows it, Ava is caught in the house’s grasp too.