Rachel Wiltshire has everything she's ever wanted: a close group of friends, a handsome boyfriend, and acceptance to the journalism program at a top-choice college. But one fateful evening, tragedy tears her world apart.   

Five years later, Rachel returns home for the first time to celebrate her best friend's wedding. Still coping with grief, she can't stop thinking about the bright future she almost had, if only that one night had gone differently. But when a sudden fall lands her in the hospital, Rachel wakes to find that her life has completely changed. Now she has her dream job as a writer and a stylish apartment, but the people she loves most are not the way she remembers them. Unable to trust her own recollections, Rachel tries to piece together what really happened, and not even she can predict the astonishing truth.