For readers of Gillian Flynn and A. J. Finn comes the thriller of the year: the dark and twisty tale of a young woman who commits murder with her eyes wide open and her brain still asleep.

THE WORLD WILL KNOW HER NAME

What if your nightmares weren't really nightmares at all?

We spend an average of thirty-three years of our lives asleep. But what really happens, and what are we capable of, when we are sleeping?

Anna Ogilvy was a budding twenty-five-year-old writer with a bright future. Then, one night, she stabbed two people to death with no apparent motive—and she hasn't woken up since. Dubbed "Sleeping Beauty" by the tabloids, Anna suffers from a rare psychosomatic disorder known to neurologists as "resignation syndrome."

Dr. Benedict Prince is a forensic psychologist and an expert in the field of sleep-related homicides. His methods represent the last possible hope of solving the infamous "Anna O" case by waking Anna up so she can stand trial. But the doctor must be careful treating such a high-profile suspect—he's got career secrets and a complicated personal life of his own.

As Anna shows the first signs of stirring, Benedict knows he must determine what really happened and whether Anna should be held responsible for her crimes.

Only Anna knows the truth about that night, but only Benedict knows how to discover it. And they're both in danger from what they will discover.