When her estranged father goes missing, Jude is persuaded by her mother to find his will. She travels to the family cottage on remote Gull Island, glad to be away from the city and to have the chance to sort through old memories, but is unsettled by what she finds there.

While contending with the neglected cottage and encroaching wild animals, Jude looks not only for her father's will, but also for photographs of herself as a baby, desperate for proof that she was loved as a child. However, loneliness and terrifying dreams soon wear on her, bringing back frightening memories. Thoughts of her distant mother and intimidating father, her jealous sister, and her mother's mysterious friend infest Jude's increasingly clouded mind.

Then a fierce storm sweeps away her boat and severs her from the outside world. Forced to reckon with long-buried truths and filled with the terrible sense that the cottage may be haunted by more than the past, Jude begins to fear for her sanity--and her life.