When social worker Jax receives nine missed calls from her older sister Lexie, she assumes that it’s just another one of her sister’s episodes. Manic and increasingly out of touch with reality, Lexie’s mental state has pushed Jax away for over a year. But the next day, Lexie is dead: drowned in the pool at their grandmother’s estate. When Jax returns to the house to go through her sister’s things, she learns that Lexie was researching their family’s and the house’s history. And as Jax dives deeper into that research, she discovers that the land holds a far darker history than she could have ever imagined.
In 1929, thirty-seven-year-old newlywed Ethel Monroe hopes desperately for a baby. In an effort to distract her, her husband whisks her away on a trip to Vermont, where a natural spring is showcased by the newest and most modern hotel in the northeast. Once there, Ethel learns that the spring is rumored to grant wishes, never suspecting that the spring takes in equal measure to what it gives.