The Sister Secret - The Beckett Sisters Saga, Book 1 (Unabridged)

On her second night working the front desk of her family's dilapidated motel on the shores of the Florida panhandle, Delilah "Dee" Beckett discovers a dead body.

And there are three things that are strange about that:
She knew him.
She loved him.
She thought she had killed him ten years ago.