Aly is a thirty-five-year-old high school English teacher, divorced, not thrilled with her job, a little lonely. One day she takes the train instead of driving home and is recognized by Tom, the son of her best friend. After this first accidental encounter, they meet again, and again. Aly finds herself taking the train, looking forward to this interlude. Tom is tall, blond, handsome, an athlete, intelligent, sensitive—even a gifted musician. The moments they spend together become the most meaningful part of their lives. Then he wants more. How can she resist? They are perfectly suited in every way but one. Tom is a much younger man.