Lord Martin Nanter, a hereditary peer and a member of the House of Lords, is occupied not only with lawmaking and political activity, but is also known as a brilliant writer of biographies. One day, he decides to write a biography of his great-great-grandfather—a doctor, a specialist in blood diseases, who had been a personal physician to Queen Victoria herself. But while investigating the circumstances of the famous ancestor’s life, Martin stumbles upon strange events connected to tragedies of people close to him. And step by step, the younger Nanter reaches the terrible secret that, it seemed, his great-great-grandfather had taken to the grave with him. The secrets of an extremely strange—and terrifying—crime…