17-year-old Madeline, or Maddy, Whittier was born with a very rare disease called Severe Combined Immunodeficiency (SCID). In order to stay alive, Maddy has to stay cooped up in her house with only her mother, Carla her nurse, and her abundance of books to keep her company. This all changes when a new family moves in next door to her house. This family's son Olly takes an interest in Maddy. Maddy and Olly's relationship progresses from online messages to in-house visits and so much more...