The heroine of the novel is a rising star of Russian detective literature, Lidiya Sergeevna Kosichkina, an amazing and unpredictable woman. Her ability to get involved in various creepy stories should be included in the Guinness Book of Records. One autumn, staying at the dacha to finish work on a new novel, she becomes the only witness to a real murder, and not just one, but a whole series of mysterious murders, the meaning of which is impossible to unravel. to the criminal investigation department...