This book felt like a rough draft. I wanted a lot more out of it. For a psychological suspense story, the climax was a bit of a let down. Everything needed to be turned up a few notches. It was an easy read with decent writing. The concept was interesting despite the sometimes mediocre execution. I was compelled enough by this book to finish it but wouldn't necessarily recommend it.

Delta is an interesting character and narrator but again, I wanted more. The author was trying to slowly and subtly drop insights into her past but I was hoping to learn more about her personal and professional relationships prior to meeting the Straub family. Why did this particular family appeal to her? Did she have a specific plan from the start? Had she ever tried to insert herself into another family or individual's life? Why does she do what she does? I want more of an answer than "She's crazy so she does crazy things".

The other characters felt rather flat. We don't really know where their motivations come from or what they really think of Delta. Fritz was particularly hard to understand or care about as we get very little to work with. It didn't make sense to me that Fritz and Amelia accept Delta from the get go or that they so readily involve her in the most intimate aspects of their lives.