When controversial American academic Paul Yelland is invited to speak at Oxford's Department of Criminology, it stirs up latent emotions campus-wide. And when he is found strangled in his room later that night, Lewis and Hathaway have plenty of suspects—but was his murder motivated by politics, ambition, or vengeance?When controversial American academic Paul Yelland is invited to speak at Oxford's Department of Criminology, it stirs up latent emotions campus-wide. And when he is found strangled in his room later that night, Lewis and Hathaway have plenty of suspects—but was his murder motivated by politics, ambition, or vengeance?