Unopened Love: If you knew how much you were loved, how would it change your life?

Days after their mother's death, four daughters each receive a letter which reveal not only her love but a secret that will affect the rest of their lives. In the shadow of 9/11, Phil Day never imagined he'd grow old without his Sarah. He knows the letters his wife mailed to each daughter before she boarded the doomed flight changed their lives, but he doesn't know one daughter never read her letter.