As others have noted, this book begins with a great "hook" (Eve floating in and out of consciousness), and pulls the reader right in.
After being kidnapped, non profit disaster relief worker Eve ruminates on the last few months of her life that led up to her present circumstances. Wrong choices - moral and man, family relationships, work communications, all are examined.
This basically means that the entire novel is tension filled. Readers are so busy looking for clues that indicate who the baddies are and if they are clearly implicated that the tightly woven novel speeds by. The writing is terse, not overly descriptive, but perfect. The author is not female, but does a good job "writing" a woman.
I liked it - a lot. A great read.