Vanishing acts - Jodi Picoult

Delia Hopkins has led a charmed life. Raised in rural New Hampshire by her widowed father Andrew, she now has a young daughter, a handsome fianc, and her own Search and Rescue bloodhound - which she uses to find missing persons. But as she plans her wedding, she is plagued by flashbacks of a life she can't recall.
Then a policeman shows up at her door, arresting her father for the kidnap of a little girl. And Delia's past and present fracture into little pieces.

VANISHING ACTS is a book about the very nature and power of memory. It explores what happens when the past we have been running from catches up to us, and questions who we trust to tell us the story of our lives before we are capable of remembering it ourselves.