In the film, which will deviate slightly from the novel, Nick's wife Amy (Rosamund Pike) has gone missing under mysterious circumstances. Called "the most hated man in America," and with voiceovers suggesting he's more than capable of doing the deed, all signs point to Nick as the main suspect in her murder. The trailer also gives viewers the first glimpse of Neil Patrick Harris as Desi Collings, Amy's creepy ex-boyfriend.
Check it out below and then hit the comments with whether or not you think Affleck's character totally murdered that chick.
Gone Girl hits theaters on Oct. 3. Will you see it?