I was so lucky to receive an ARC of this book! I can't tell you how excited I was to read it before publication. Kate and Lauren are struggling with the death of their father Harry. As they are eating their weekly dinner at their mother's house, a stranger named Jess arrives claiming to be Harry's biological daughter. Kate and Lauren's mother says no way this is true. Kate and Lauren have differing opinions, one believes she is his biological daughter while the other doesn't. They have to get to the bottom of who Jess is and getting to the bottom of it uncovers a lot about everyone's past that has been kept secret. There is so much mystery to this book and twists all along the way. Read it!