Gillian Flynn's use of the double unreliable narrator Anonymous College

In Gillian Flynn's Gone Girl, there is one reason in which the reader never suspects Amy as the criminal, and that is her use of the double unreliable narrator. In most books, the reader immediately can tell when the narrator is inaccurate; they can do this through the narrators' speech, tone, or even their actions. So for Gone Girl, one must go through each character and figure out their unreliability. However, in Flynn's novel, the reader similarily goes through these feelings with the victim Nick Dunne. The reason for this is because Nick is also an unreliable narrator, as well. From the beginning of the novel, Nick seems like a bad husband; always leaving her for long hours of the day, complaining about everything about her even when she is trying to be kind, and most of all he also lies to her. As the novel progresses, Nicks guilt looks even worse. At first, it seems to clear to be Nick, all of the evidence pointing to him and such but then Flynn does something very unique that puts your eye back on Nick. After all, the evidence is shown to be him, though it is almost transparent he is framed, Flynn changes this up and shows you that Nick has been lying to the police as well and has a secret mistress! This discovery, of...