Cassie Maltham's life changed for ever one scorching August day in 1975. The day she and her twelve-year-old cousin Suzie took a short cut through The Greenway, an ancient enclosed pathway steeped in Norfolk legend. For somewhere along the path Suzie simply vanished...

Twenty years on Cassie is still tormented by nightmares, parts of her memory completely erased. Accompanied by her husband Fergus and friends Anna and Simon, she returns to Norfolk, determined to confront her fears and solve a mystery that won't let her rest.

Then another young girl goes missing at the entrance to The Greenway, and Cassie is pushed once more into the darkest recesses of her mind.

John Tynan, the retired detective once in charge of Suzie's case, also has to face some personal demons, for the unsolved disappearance has haunted him all these years. Without hesitation he offers his help to Detective Inspector Mike Croft who is leading the increasingly frantic search for the missing child...

The only link is Cassie. But can they trust her? She may be the chief witness, but she is their only possible suspect too...