Conceived to provide a bone marrow match for her leukemia-stricken sister, teenage Kate begins to question her moral obligations in light of countless medical procedures and decides to fight for the right to make decisions about her own body. Anna is not sick, but she might as well be. By age thirteen, she has undergone countless surgeries, transfusions, and shots so that her older sister, Kate, can somehow fight the leukemia that has plagued her...