I read the book some time ago. I did find it frustrating that the main character didn’t just blurt out to her husband what had really happened. I knew what the true story of Catherine and Jonathan must have been from the start of the book and I imagine most viewers of the show felt the same. What other explanation for the photos could there have been? The final episode does a decent job of explaining why she couldn’t find the words all those years. Overall the acting, directing and storytelling came together to create an engrossing series.