The provincial Vera, left without money and housing, comes to Moscow and gets a job as a nurse in the rich house of the Guryevs, located outside the city on the edge of the forest. At first, Vera is delighted with the new job. But soon she begins to notice oddities in the behavior of all the inhabitants of the estate. Every day there are more and more questions: why does the lawyer Arkady take the place of the owner of the house at a family dinner? Where does a new bruise from an injection appear on the body of her ward Nikolai every morning, which is not in the doctor's prescription? How did the previous nurse leave for her hometown without a passport? And what kind of strange tenant lives in the guest house? It’s also impossible to discuss your guesses - all the inhabitants of the estate remain silent. Soon, the body of a young girl is fished out of the lake, and the police arrive at the house ...