"Things that we thought it would take the audience a long time to find, like to unravel the braille that's sort of in the background in the FBI agent's office," Marling said in a Facebook Live with Vulture, seemingly referring to how the name "Rachel" was found by fans in the background of a particular scene. "You know within 48 hours someone had posted and unraveled that braille and we thought that would be harder to find. I think that's an exciting part of telling a mystery now, is that there are a lot of super sleuths working together on the internet to figure it out."