Despite his overwhelming fear of interacting with people, Christopher, a mathematically-gifted, autistic fifteen-year-old boy, decides to investigate the murder of a neighbor's dog and uncovers secret information about his mother.

Henry would like to find a friend at school, but for a boy on the autism spectrum, making friends can be difficult, as his efforts are sometimes misinterpreted, or things just go wrong--but Henry keeps trying, and in the end he finds a friend he can play with.