Did Nick Dunne kill his wife? That's the central question at the heart of "Gone Girl," a global bestseller and upcoming film from David Fincher. The question isn't answered in the latest trailer for the film, but it sure does paint a bleak picture.

Ben Affleck stars as Dunne, who on his fifth wedding anniversary reports that his wife (played by Rosamund Pike) has gone missing. As he organizes search parties and begins talking to the media, Dunne's portrait of an ideal marriage begins to fall apart, causing many to view him as the prime suspect and accusing him of murder.

There is a lot to be excited for here. Fincher is a skilled director, crafting memorable, unique and thought provoking films like "Fight Club," "The Curious Case of Benjamin Button" and "Se7en" over the course of his long career. He is also an executive producer on Netflix's hit show "House of Cards."

If the pedigree of the director doesn't get you excited there is always the trailer itself, courtesy of JoBlo. A great feeling of unease and mystery flows through the trailer as Dunne struggles to find answers while attempting to maintain his innocence, even as evidence and motives for him to commit the crime continue to appear.

Adding to the creep factor is Pike's character, who can be heard reciting lines from a diary with an uneasy coldness. She remarks in the trailer that she doesn't feel safe with her husband. Every glance Affleck and Pike share in the trailer is full of tension, and Pike's character even goes so far to say that "this man of mine may kill me."

But just because Dunne creeped his wife out and the marriage was far from ideal, does that mean Dunne would go so far as to commit murder? The trailer makes a point of highlighting the character of Neil Patrick Harris, who continually pops up at certain events and may have been involved with Dunne's wife before her disappearance.

How is he involved, and why was Dunne's wife trying to buy a gun? As the trailer points out, the simplest answer doesn't always turn out to be true.

If you want to know the truth right now you could always read the book, or hop on over to the "Gone Girl" Wikipedia page and spoiler it for yourself. For everybody else, all will (hopefully) be revealed when "Gone Girl" hits theaters on October 3.