Agatha Gesenska is the beloved author of crime novels in Prague, and she lives a rich, idyllic life in her beautiful and charming city. Her books become best-sellers, with hundreds of readers attending her presentations and public readings, while her lectures on creative writing are devoutly followed by her faithful students - starting with Zuzka, her favorite.

But everything will be overturned when a dark, invisible person, wrapped in the dense shadows and fog of the city, begins to reenact scenes of brutal murders from her books, targeting a different person from her surroundings each time. In the reenactment of her latest book, the victim will be Agatha herself.

And her punishment will be death.

An unexpected, unforgettable, and original thriller full of twists, set in the most mysterious capital of Europe.