Anna is everything her identical twin is not. Outgoing and athletic, she is the opposite of quiet introvert Jess. The same on the outside, yet so completely different inside --- it's hard to believe the girls are sisters, let alone twins. But they are. And they tell each other everything. Or so Jess thought. After Anna falls to her death while sneaking out her bedroom window, Jess' life begins to unravel. Everyone says it was an accident, but to Jess, that doesn't add up. Where was Anna going? Who was she meeting? And how long had Anna been lying to her?