Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Separated twins and damaged lives

I thought the concept of this book was interesting: twins who were separated at birth by their father, a doctor, because one child has Down's syndrome. The wife thinks the child was born dead. The nurse, the only other person present at the birth, chooses to raise the baby instead of taking her to an orphanage. The book follows the parallel lives of the two children, although it focuses on the father, David and the consequences that his actions and the secret have on his life and his family, particularly his wife. I found this book difficult to get into, and was never really drawn to most of the characters. This is not a light story, although there are some pleasant moments. On the whole, it is rather dark in tone. The writing was well done, but the story did not hold my interest and the ending was not my favorite.