Nina Spiers comes home to find that her husband, Lewis, has committed suicide. Lewis, a former high-school biology teacher, had ALS, and they had discussed this possibility, but Lewis has not included Nina in his final decision and its enactment. She searches in vain for a last message from Lewis, but can find nothing. We learn that Lewis left his teaching job over the community's pressure on him to incorporate the possibility of divine creation in his teaching of evolution; profoundly rationalist and scornful of religion, he refuses and resigns.

Lewis's body is taken to the local funeral home where, inadvertently, it is embalmed, which he would not have wanted. Ed Shore, the undertaker, arranges to have the body cremated immediately and brings Nina a note found in Lewis's pajamas. Instead of a message for her, it is a piece of badly-written satirical verse about the school and the argument between creationism and science. There is nothing for Nina.

Later Ed brings Nina the ashes. Ed and Nina have a history: once, on an evening when Lewis and Kitty, Ed's saint-loving Anglican wife, were engaged in a fierce argument, Ed had kissed Nina. Now, they talk of the preservation of the body and the existence of the soul. Nina then takes Lewis's ashes and scatters them at a crossroads outside of town. At first she feels shock at what she is doing, and then pain, but we infer too that as she sheds the comfortable self-effacement of her role as Lewis's wife, Nina is perhaps coming back to life herself.