Rhea Farrell carries scars from an accident in which she lost her arm. She also carries scars that aren't visible—the loss of a mother she hardly remembers, her father's drinking, and the confusion around accepting her sexuality.
When Rhea runs away to New York, she turns to the person she always wanted to confide in—her mother. Rhea starts to write her letters—telling things she can't tell anyone, sharing her fears, asking for help. Rhea's journey brings her into her mother's past, and as she finds who her mother truly was, Rhea discovers the kind of woman she wants to be.