I only took so long to read the book because I couldn't read it at night before bed like I normally do. Just like in gone girl, the second you think you've got it figured out, things change & then in the end you had no idea. I was also afraid the ending couldn't leave me satisfied. like an episode of dateline, no matter what you're still sad at the end. somehow, though, a great ending is achieved; much unlike gone girl! Consider me now an official Gillian Flynn fan & now can't wait for this movie in a few months!