Gone Girl

On the morning of their fifth wedding anniversary, Nick Dunne discovers that his wife, Amy Elliott Dunne, has disappeared from their rented house in North Carthage, Missouri. The couple moved from New York after losing their magazine jobs, largely to be near Nick's mother during her terminal illness. Nick and his twin sister, Margo, now run The Bar, a business financed with $80,000 borrowed from Amy's remaining trust fund. Their once affectionate marriage has deteriorated, and Nick's uneasy account of their relationship gives investigators and readers reasons to question what he knows.

Detectives Rhonda Boney and Jim Gilpin investigate signs of a struggle and Nick's inconsistent descriptions of his movements on the morning Amy vanished. His visibly inappropriate smile during a press conference, revelation of his affair with twenty-three-year-old Andie, mounting debts on credit cards in his name, and a larger life insurance policy compound public suspicion. Noelle Hawthorne announces that Amy was pregnant. An anniversary treasure hunt leads Nick to locations connected to his infidelity and to evidence apparently incriminating him, including expensive purchases in Margo's woodshed, a damaged diary found at his father's empty house, and a missing handle from a Punch and Judy puppet. Sensational television coverage increasingly treats Nick as a likely killer, although much of the evidence has not been independently explained.

The novel's opening division, Boy Loses Girl, alternates Nick's immediate first-person narration with diary entries attributed to Amy and dated between 2005 and 2012. The diary presents a romance turning into a frightening marriage, with allegations of Nick's cruelty, financial troubles, and a pregnancy. These are Amy's purported recollections rather than an objective account. At the beginning of Boy Meets Girl, Amy herself reveals that she is alive and orchestrated her disappearance, arranging the apparent crime scene, planting misleading evidence, and writing 152 diary entries as a fictional version of herself for police to discover. Her apparent pregnancy was manufactured through a medical urine test using a sample secretly taken from the genuinely pregnant Noelle. Amy explains that she resented Nick's infidelity and the expectations underlying the accommodating 'Cool Girl' persona she had performed during their courtship.

Amy initially plans to hide until Nick is convicted and then die in a way that strengthens the false case against him. At the Hide-A-Way cabins in the Ozarks she monitors news coverage, but abandons that plan and begins to imagine returning to Nick after his public appeals. When fellow guests Greta and Jeff steal her money, she seeks help from her wealthy former boyfriend Desi Collings. Desi shelters her at his secluded lake house but controls her access to transportation, keys, the gate, and cash. Amy eventually uses his longing for her to obtain the physical evidence needed for a fabricated assault story, drugs him, and deliberately kills him. She then returns to Nick, covered in blood, claiming Desi kidnapped and repeatedly assaulted her and that she killed him while escaping.

Amy's account of captivity is publicly embraced, and medical examinations document injuries and sexual contact without establishing that Desi abducted her. Boney questions coincidences between the supposed kidnapping and the earlier evidence, but the investigation cannot prove Amy's deception. After she is released, Nick learns details of her plan from Amy herself during a private conversation designed to prevent recording. With Margo, defense attorney Tanner Bolt, and eventually Boney, he searches for corroboration, while Amy continues to control the public account and retains evidence that could make Nick appear to have poisoned her. His reputation depends on Amy's version of events, and leaving her could expose him to further accusations.

In the final division, Boy Gets Girl Back (Or Vice Versa), Nick begins writing a manuscript titled Psycho Bitch to expose Amy and leave their marriage. Amy instead reveals a new pregnancy, this time confirmed by a doctor's blood test. Nick infers that she used semen he supplied during their earlier fertility treatment, although the novel does not directly depict how conception occurred. Amy demands that he destroy his manuscript and accept responsibility for incriminating purchases; Nick deletes the book, withdraws his cooperation with Boney, and decides to remain so he can protect and raise their son. Margo is devastated by the decision. In the final chapter, the baby is due the next day, on the couple's sixth anniversary, but has not yet been born. Nick is outwardly attentive, yet his final response to Amy reveals continuing hostility. Amy insists on having the last word. Their marriage continues through coercion, fear, attachment, and conflicting attempts to control the story, without a legal reckoning or an unambiguous reconciliation.

Through Nick's evasions and Amy's deliberately constructed diary, Gillian Flynn examines unreliable narration, gendered expectations of marriage, intimate control, performance of identity, and the influence of publicity on judgments of guilt. The irony of Amazing Amy, the idealized fictional counterpart created by Amy's parents, extends into Amy's attempt to author the final version of her own marriage. The novel's conclusion remains psychologically unsettling because the immediate criminal investigation is effectively closed while the underlying danger and conflict persist.