A young man named Arthur Vaughan arrives in London as Parliament is dissolved and becomes drawn into the politics of a small, corrupt borough contest. The narrative follows campaign maneuvers, local intrigue and personal entanglements: rival candidates, scheming patrons, social entertainments, and a disputed election that produces violence, a destructive fire, exposed plots, and shifting loyalties. Through electoral aftermath, revelations and moments of forgiveness, characters face the costs of ambition and the imperfect workings of reform.