The heroine of Isabel Wolf's new book is a psychologist by vocation. She writes a column for psychological help in the newspaper, and, in addition, gives wise advice to everyone in need live on Radio London. However, the most charming Rose Costello could use someone who could help her understand her own soul. That person is Theo Shin, Star Boy, as the heroine calls him, an amateur astronomer who shows up to rent a room in Rose's house and completely changes her life.