On the secluded Isle of Jersey in the final days of World War II, a young woman waits for her beloved husband to return from the front. Grace (Nicole Kidman) has been raising her two young children alone in a beautiful, cavernous, Victorian mansion, the one place she believes them to be safe.
But they are not safe. Not anymore.
When three new servants arrive to replace the ones that inexplicably disappeared, startling, supernatural events begin to unfold. Grace’s daughter reveals she has been communicating with unexplained apparitions. At first, Grace is reluctant to believe in her children’s frightening sightings, but soon, she too begins to sense that intruders are at large.
