Twenty-year-old Abigail Turner has only known her mother, Claire--who died shortly after she was born--through letters, videos, postcards, and journals. Abby's father, Josh, has raised his precious daughter himself, but his overprotectiveness has become stifling. Abby longs to forge out on her own and see the world after a childhood trapped indoors: she suffers from bronchopulmonary dysplasia, which means a case of the sniffles can rapidly escalate...