The past...Five years ago, after a whirlwind courtship, Marissa and David married, expecting to be together for the rest of their lives. A short nine months later, Marissa walked away without an explanation, determined she was doing what was best for the man she loved.The present...Needing a change, Marissa is about to embark on her dream job as a trauma nurse in a busy hospital, but a phone call from her brother tilts her world on its axis. David,...