Ava Lavender is a girl born with wings. She lives in a house on a hill with her mother, her grandmother, whom everyone in the neighborhood calls a witch, and her strangely silent twin brother. Ava's mother forbids them from showing themselves to the neighbors. But one day, Ava loses her patience and leaves the house, wanting to be a normal teenager for just one day. But she can't imagine how everyone will react to her, especially the devout Nathaniel Sorrows, who mistakes her for an angel...