A young woman wakes in a strange bed beneath coarse sheets. The bare walls are a dismal green. A sickly light filters through a metal grille. Doctor Maynard Straker steps into the room, and speaks. 'Have no fear, Miss Ashton. I am entirely at your service.' But this is not her name. And she should not be here - in the Asylum. She is Miss Georgina Ferrars, of Gresham's Yard, London. And she can prove it. But when Dr Straker sends a telegram to her uncle in London, the reply is swift: Georgina Ferrars here stop your patient must be imposter stop. So begins a gothic mystery of high suspense and terror, as a lone woman, held against her will, must delve as deeply as she can into the void of her memory to uncover the story that will free her.