Much-Anticipated 'Gone Girl' Trailer Finally Debuts! (VIDEO)

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The highly anticipated Gone Girl trailer debuted Monday, giving fans a peek at the thriller that promises to be every bit as intense as the best-selling Gillian Flynn novel upon which it's based.

Set to a haunting cover of the Charles Azvanour song She, the film appears to be entirely true to director David Fincher's dark style, and from the looks of it, elicits a standout performance from Ben Affleck, who plays Nick Dunne, the man suspected of killing his missing wife Amy (Rosamund Pike).

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Check out the trailer to see the icy marriage between Nick and Amy play out on the big screen, and to hear a few truly chilling words from Nick.

"I did not kill my wife. I am not a murderer," he says, strangely detached.

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Gone Girl hits theaters October 3. Do you think the movie will be as good as the book?