Libby Cohen is a doctor who is afraid of her own patients - and just about everything else in the world. Andrew Calahan, on the other hand, is afraid of himself. Blackouts come without warning and suddenly, Andrew finds himself waking up miles away - holding knives and covered in blood. When Libby witnesses a fatal hit-and-run, her life suddenly collides with Andrew's. As coincidences begin to add up, Libby and Andrew find that their lives are eerily intertwined. For instance, both are haunted by the number eleven. Soon, Libby and Andrew find themselves in the midst of an ongoing supernatural battle they never knew existed. As they pursue the elevens, they begin to uncover pieces of their shared past. Now, hunted by a demonic presence that threatens to tear them apart, the two must reawaken their old existence and learn how to fight back before they lose each other - and all hope for discovering who they truly are.