Gabe Figaret, an ex-psychologist turned writer, now works in a bookshop in Paris. He lives a quiet life as he attempts to rehabilitate his psyche from the ravages of his past. While he'd prefer to probe his own mind rather than a stranger's, he cannot refuse when Reynard, a doctor and one of his regular customers, asks Gabe to mentor a patient, a mysterious young woman named Angelina.
Angelina is shy. She is mute and delusional. At first, she appears to be terrified of Reynard. But Gabe quickly discovers that Angelina is not quite what she seems. As his relationship with the enigmatic Angelina deepens, Gabe's life in Paris becomes increasingly unstable. He senses a presence watching, lurking, following his every move.
When Angelina tells Gabe that he must kill her, and then flee to a fantastical realm she calls Morgravia, he is aghast. But Angelina gives him proof that Morgravia is not a delusion; it is real. Soon, Gabe's world will be turned upside down, and he will learn shocking truths about his past, and the perilous trials in his future.