The screech of tires ended Hannah Scott's world as she knew it. A year after she donated her daughter's organs, still reeling with grief, she unexpectedly stumbles into the life of the Bell family. Their fifteen-year-old daughter, Maddie, survived only because Hannah's daughter had died. Mesmerized by this fragile connection to her own daughter and afraid to reveal who she actually is, Hannah develops a surprising friendship with Maddie's mother. The Bells, however, have problems of their own. Once on the verge of leaving her wealthy but abusive husband, Olivia now finds herself bound to him as never before in the wake of the successful transplant that saved their fifteen-year-old daughter's life. Meanwhile Maddie, tired of the limits her poor health puts upon her and fearful of her father's increasing rage, regularly escapes into the one place where she can be anyone she wants: the Internet. But when she is finally healthy enough to return to school, the real world proves to be just as complicated as the isolated bubble she had been so eager to escape.