Could you forgive your sister for the worst betrayal? The summers at their grandmother's beach house were the happiest times of Cassie and Julie's lives as half-sisters. They were as close as only best friends, accomplices, and confidantes can be. But after a terrible tragedy nearly fifteen years ago, there is only silence and pain between them. Now, it is their grandmother's last wish that forces them to spend one more summer together in the house in the Hamptons. Will they confront the family secrets, or risk losing each other forever?.