Grace (Nicole Kidman), the devoutly religious mother of Anne (Alakina Mann) and Nicholas (James Bentley), moves her family to the English coast during World War II. She awaits word on her missing husband while protecting her children from a rare photosensitivity disease that causes the sun to harm them. Anne claims she sees ghosts, Grace initially thinks the new servants are playing tricks but chilling events and visions make her believe something supernatural has occurred.