A long-ago trauma and a family mystery may shed light on her troubled sleep-or pull her into the darkness once and for all... As a child, Grace Cooper suffered from bouts of sleepwalking. Now, after the unexpected death of her husband, she's moved back to Woodburn Cottage, her childhood home - and the sleepwalking returns. Grace doesn't know what she does in her sleep, but it's stirring up dark memories that Grace would rather forget. Like the disappearance of her brother Simon as child and the tragic death of her father... Grace tries to settle into her new life, but with the passage of time, the sleepwalking only becomes more regular, and the blurred memories of the past only become more disturbing. Spurred on by these hazy dreamlike recollections, Grace becomes determined to find out what happened to Simon that fateful night. But digging up the past isn't always a good idea, because you never know what skeletons you might unearth...