Trent Reznor recently talked with The Wall Street Journal
about the Gone Girl
"I was listening to that calming, placating music and thought, we need to tap into this. The movie is about the facade of the good neighbor, the good Christian, the good wife. So the notion was to start with music that's attempting to give you a hug." The result is a score composed of lilting, haunting synths interspersed with doleful piano melodies and accentuated by the orchestral arrangements.