As an old house is demolished in a gentrifying section of London, a workman discovers a tiny skeleton, buried for years. For journalist Kate Waters, it’s a story that deserves attention. She cobbles together a piece for her newspaper, but at a loss for answers, she can only pose a question: Who is the Building Site Baby?

A loving husband or a heartless killer…she’d know, wouldn’t she? For fans of GONE GIRL and THE GIRL ON THE TRAIN, an engrossing and thrilling debut novel of psychological suspense from a major new talent.