The start was really great and powerful. It was as if it grabbed me by the throat, and I couldn't breathe. My heart was pounding to the thought of something similar happening to me, my daughter, my friends. 
But then it started getting increasingly boring. The characters and the relationships between them weren't well worked out, the flashbacks were not enough to give the story a strong foundation, and the plot became increasingly crazier. 
A plot that started as a sexist/religious dystopia against women ended as a spy kind of thriller, with as an inexplicable ending as it had a backstory. 
It's a pity really, the author, with her linguistics background, could have done wonders...