For a while, it seemed like both Taylor sisters had found happiness. Hannah landed a coveted publishing job in New York City. Nicole got married to a promising young attorney named Graham McIntosh and became a mother to a baby boy named Ian. Now, more than fifteen years later, it is Hannah who is married to Graham. When he is murdered at the couple's beach house, Hannah has no choice but to welcome her teenaged stepson's biological mother - her estranged sister, Nicole - back into her life. When the police begin to treat Ian as a suspect, the two sisters are forced to confront the truth behind family secrets they both tried to leave in the past.