Nothing much actually happens in this story. Just the everyday life of a particular family through the spring, summer, and fall of one year. And everything happens.
Rosie Ferguson is having a tough year the summer she is thirteen. She and her tennis partner, Simone, are highly rated in their local tournament circuit. They begin well. But things are changing. Simone has started to draw interest from boys, while Rosie has begun to feel unattractive and depressed. Also, there is this strange older man, Luther, whose attention on the girls when they play is scary. And their tennis pro, whom Rosie mostly adores, takes off in the middle of the summer with other players for more important tournaments and doesn’t return for a long time. Simone turns up pregnant. And, to top it all off, Charles, an older neighbor and friend of Rosie’s parents since she was little, dies.
Rosie tries various ways to cope. She cheats ever so slightly on some of her singles games when nobody – except Luther, of course – appears to be watching. She tries injuring herself once or twice. But these remedies only seem to make matters worse.
Rosie’s mother, Elizabeth, is, at the same time, becoming slowly paranoid. She is worried that Rosie is shutting her out of her life. She, along with her husband and most of the other tennis parents, fears that Luther is a potential child molester, and she is especially freaked out when she thinks she has seen him watching her from behind the empty house across the street. When she goes to visit Charles in his last days, it brings up memories of previous losses, especially of her first husband, Rosie’s father, who was killed in a car accident when Rosie was about four, and of the time immediately afterward she spent as an alcoholic. As the disastrous summer progresses, Elizabeth appears to have a minor nervous breakdown triggered by her incessant irrational fears.
The rest is a story of how Elizabeth and Rosie must pull themselves together again with the help of Elizabeth’s husband, James, and their friends, Rae and Lank, and even Simone. And each other. And Luther, who turns out to be the most help to Rosie, instead of being the sinister character they had all thought he was.