In a house full of secrets, the world's most famous mystery writer is about to become a target. Manchester, December 1926. Agatha Christie has been found. After her sensational eleven-day disappearance, the world’s most famous crime writer is whisked away to the snow-covered Abney Hall to recover. But for her private nurse, Jane Goodbetter, the retreat is anything but peaceful. As a local theatre troupe arrives to rehearse a macabre new play, the atmosphere turns sinister. Secrets are leaking to the press, and Jane’s own dark past at a wartime asylum threatens to surface. When a body is discovered in the freezing lake and a blizzard traps everyone inside, the line between stagecraft and real-life murder blurs. In a house full of actors, doctors, and a cheating husband, Jane must unmask the killer before the final curtain falls, or she’ll be the next one silenced.