In Gone Girl (2014), Amy Dunne stages her own disappearance to frame her husband, Nick, for her “murder,” then returns to manipulate him into staying with her under threat of destroying his life.

What happens early on

On their fifth wedding anniversary, Nick comes home to find Amy missing and the house in disarray. Police treat Nick as the prime suspect, especially after signs of a struggle and Amy’s diary paint him as an abusive, cheating husband.

The big twist

It’s revealed that Amy is alive and hiding in the Ozarks, having faked her pregnancy and fabricated diary entries to make Nick look guilty. She even uses a neighbor’s urine to fake pregnancy tests and plants evidence (like credit‑card purchases in Nick’s sister Margo’s woodshed) to implicate him.

Amy’s return and the “kidnapping” story

When Nick publicly pleads for her return on TV, Amy decides not to kill herself and instead goes to her ex‑boyfriend Desi, who shelters her at his lake house. She then kills Desi, injures herself, and concocts a story that he kidnapped and raped her, which the police and media accept, clearing Nick of murder.

The toxic ending

Back home, Amy blackmails Nick into staying by threatening to frame him again and by revealing she is pregnant (using his stored sperm). The film ends with them trapped in a grotesquely “perfect” public marriage, both knowing the other is a monster but too scared to leave.

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