Oleg, nicknamed “Soulless,” the head of the Department of Special Investigations, managed to grow attached to his employee Nadezhda, whom everyone affectionately called “Mouse.” And what a shock it was for everyone to learn that she had been killed! The department began investigating with the help of its постоянного консультанта—Oleg’s friend, the writer Alisa Vertinskaya, who works under the pseudonym Hel. As it turned out, the circle of people Nadi knew was very narrow. Mostly it consisted of acquaintances from a help center for women who had suffered from violence. In the past, Nadi also experienced a tragedy, after which she went through rehabilitation. Oleg and Hel learned that back then there had been a scandal at the center—its echoes still haven’t died down…