When a young woman is discovered in Wrexham covered in someone else's blood, it seems that a horrendous crime has been committed. The only questions are who and where.
But the questions aren't so easily answered when the victim can't remember anyhting not even her own name. Unable to identify the woman and with no clear motive, finding the violent assailant becomes even harder.
This individual is not the kind to sneak off back to their normal life. They will strike again. And Ruth must be ready for them when they do...