Zac is seventeen years, and he has leukemia. He has been in the hospital for ten months recovering from a bone marrow transplant. His days are filled with watching TV, solving crosswords with his mom, and playing Call of Duty. He’s counting down the days until he leaves the hospital and can be normal again when he hears the new girl in the adjacent room.
Mia is also seventeen and has osteosarcoma in her leg. She is loud and rude, and her mother can barely stand to be in the same room. She plays Lady Gaga way too loud, and it’s enough to make Zac knock on the wall to make her stop. Her quiet tap in return begins the sordid friendship that carries the remainder of the book.