This is not a story about a girl who disappears. This is the story of a little girl who comes back. As if from nowhere, she appears one day on a seaside promenade, with a black flower and a horrifying story about where she's been. But telling that story will start a chain reaction of dangerous lies and deadly illusions that will claim many more victims in the years to come.

Neil Dawson has grown up wanting to be like his father - a writer. When his father commits suicide, he is devastated. But through his grief, Neil knows something isn't right. Looking through his father's papers, he finds a copy of an old novel, The Black Flower. Opening it will take Neil into an investigation full of danger, pain and subterfuge.

Hannah Price is also mourning her father. She followed his footsteps into the police force, and knows she has a big reputation to live up to. When she gets assigned to Neil's father's case, it will lead her on a journey into her own past and to the heart of a shattering secret.