Corporate lawyer, Megan Wright, investigates the puzzling suicide of her twin sister, Jane. As Megan allows herself to be pulled into this world, she comes closer to uncovering why Jane died and how. Her investigation leads to a horrifying twist that finds her fighting for her very survival, just as Jane did. But who did kill Jane and why? And are they now after Megan? In a final night of terror, Megan discovers the answers to those questions as well as the answer to who she really is and just what she's capable of doing in order to survive.