A traumatized girl wakes in the hospital with no memory of how she got there. Or of anything else. Her only thought is to find the one person she remembers—her Uncle Alex.

When the authorities contact Alex Mercer, he rushes to the hospital. He's surprised to find it's his cousin Ayla. Shocked to see the condition she's in. Stunned to learn her parents are missing.

Alex welcomes her into his home, and the family rallies around her as she tries to recover. But progress is slow, and for every step forward, she backslides. Compounding the problem is the mounting evidence that none of this was an accident. And the answers to the mystery are locked in her fragile mind.

Ayla is scared she'll never remember. Even more frightened she will—and she won't like what she recalls. But when she comes face to face with the worst memory of all, she realizes so much more than her history is at stake. And it might be too late to do anything about it.