Nora Chesnow, the narrator, is born around 1932 in Rolla, Missouri, and named Eleanor after Eleanor Roosevelt. Her devout mother dies suddenly from a brain aneurysm when Nora is in sixth grade. Because Nora told her first deliberate lie to a teacher just days earlier, she secretly believes the lie caused her mother's death. Though she outgrows this belief, the guilt destroys her ability to lie convincingly, and she resolves to be honest simply because deception is beyond her.
Nora's father remarries Mae, a pragmatic war widow from Arkansas with a daughter, Janet. Mae proposes the family move to St. Petersburg, Florida, where they settle in 1947. On the first day of sophomore year, Nora spots Leonard Lifton, a handsome, bookish junior sitting alone in the courtyard. Despite his painful shyness, they begin spending time together and fall deeply in love. Nora grows close to Leonard's mother, a former theater actress, but Leonard's father, who runs the local hospital, is openly hostile, fearing Nora will derail Leonard's future.
Though their physical attraction is intense, Nora resists consummation out of fear of pregnancy. One Halloween, after being pelted with eggs, they go to the Liftons' empty house to clean up, and Nora suggests they shower together in their underwear. Leonard's parents return unexpectedly and discover them. Mrs. Lifton, furious after defending Nora to her husband for months, presents an ultimatum: She will keep the incident from Nora's father if Nora breaks off all contact with Leonard permanently. Terrified, Nora agrees.
Before Thanksgiving, Leonard proposes marriage. Nora refuses, telling him to go to college. Instead, on his eighteenth birthday, he enlists in the army, partly to spite his father and partly to escape parental control. He completes basic training at Fort Knox, Kentucky, and ships out to Japan. In March, he invites Nora to meet him in Bradenton, across Tampa Bay. Gripped by a premonition that Leonard will die overseas, they sleep together at a hotel. Despite using a condom, the protection fails; Nora later acknowledges she may have subconsciously wanted to become pregnant.
Leonard returns to Japan. In June 1950, North Korea invades South Korea. By October, Nora's pregnancy is undeniable. Mae discovers the truth and arranges a meeting with the Liftons, who deny the baby is Leonard's. They agree to pay half the cost of a maternity home, and Nora is sent to Shaded Acres in Paterson, New Jersey. Her father cannot look at her and does not say goodbye.
At the home, Nora endures sessions with a case manager who insists her pregnancy stems from unresolved grief. She befriends Carol, a blind, sharp-tongued girl from a wealthy Connecticut family who plans to keep her baby using a trust fund. Nora advances to Miss Berry, a polished adoption social worker who describes an ideal adoptive couple for the baby: a man with a good salary and a woman who plays piano. Miss Berry arranges a phone call to the Liftons. Mr. Lifton tells Nora that Leonard knows about the baby, wishes her the best, and denied ever seeing her in Bradenton.
In January 1951, Nora gives birth to a girl. A kind nurse brings the baby to her, and Nora spends a full day holding, feeding, and changing her daughter. That night, she decides she cannot sign the adoption papers. The next morning, Miss Berry responds with escalating pressure, accusing Nora of selfishness and threatening to withdraw all help. Exhausted and without alternatives, Nora signs.
Back in St. Pete, Nora's father offers a tacit deal: They will pretend nothing happened. When a classmate publicly confronts her about her absence, Nora freezes and drops out of school. She takes a job at the library, where Russ Crandle, a former classmate who runs a flooring business, begins courting her. In December 1951, Nora finds Leonard's name on a published list of American prisoners held in North Korea. She confronts Mrs. Lifton, who confirms Leonard was captured months earlier but claims he has fallen in love with someone else and urges Nora to leave town. Nora refuses and instead accepts Russ's proposal. He knows about the baby and accepts her history.
The marriage confines Nora in material comfort but growing danger. She reconnects briefly with Carol by phone and learns that Carol kept her son. Carol also reveals that Miss Berry described the same piano-playing adoptive couple to her, exposing the story as a fabrication used to pressure girls into signing. Nora is devastated. At a baseball game, Russ sees Nora's intense reaction to spotting Leonard in the crowd and deduces Leonard fathered her child. That night, he forces himself on Nora. She deliberately eats spoiled chicken to prevent pregnancy, nearly killing herself, and warns Russ she will do it again.
Months later, Nora encounters Leonard working as a stock boy at a grocery store. She notices he is missing two fingers from frostbite and unleashes years of fury. Leonard is bewildered: He knows nothing about any baby. His parents never told him. He was a prisoner of war the entire time Nora believed he was ignoring her. Mrs. Lifton calls the next morning and confesses everything. When Nora called from New Jersey, Mr. Lifton fabricated the claim that Leonard knew about the baby and did not care. Mrs. Lifton admits she chose to protect her marriage over telling the truth.
Nora and Leonard meet at a nearby motel. He describes his capture, the brutal march north, and the prison camp where hundreds died of starvation and cold. He draws a parallel between Nora signing the adoption papers under duress and his signing propaganda petitions under duress: Both were coerced by people with power over them.
That night, Russ takes Nora into the Gulf on his motorboat. Sensing danger, she lies to him with a skill she has never possessed, fabricating a story to calm him. After he falls asleep, she takes his truck keys, drives to Leonard's motel, and tells him she wants to leave. Before driving out of Florida, they free a neglected dog from a neighbor's yard. Nora names the dog Phoenix.
Years later, Nora and Leonard live in Los Angeles, where Leonard completes medical training and Nora earns a degree in library science. When her family visits, her young half-sister Shirley innocently asks why they have no children, and Nora's father echoes the question. Nora tells the children the truth about her lost daughter. Her younger brother Bobby, now a naval lieutenant stationed nearby, visits separately and asks Nora to tell him everything. She does.
Over time, Nora reconsiders her feelings toward Mrs. Lifton, now divorced and working as a receptionist in Queens. She urges Leonard to write to his mother, arguing that Mrs. Lifton was worn down by her husband just as Nora was worn down by Miss Berry. Leonard eventually sends a postcard, and they gradually rebuild their relationship. At thirty, Nora has a son, Marcus. Mrs. Lifton, whom Nora now calls Geneva, flies to Los Angeles to meet him and reveals she hired a private investigator to search for Nora and Leonard's first child but found nothing. For the first time, Nora says aloud that her daughter is probably okay, probably loved. The novel closes with Nora, Leonard, and Geneva sitting together on the back deck, listening to crickets in the crepe myrtle trees, no longer needing to speak.