Jess is allergic to the sun. She lives in a world of shadows and hospitals, peeking at the other children in the playground from behind curtains. Her only friend is a boy in a coma, to whom she tells stories. One night she sneaks out to explore the empty playground she's longed to visit, where she discovers a beautiful impossibility: a magical garden wrought of ice. But Jess isn't alone in this fragile, in-between place...