The steadfast and sturdy Continental Op has been summoned to the town of Personville--known as Poisonville--a dusty mining community splintered by competing factions of gangsters and petty criminals. The Op has been hired by Donald Willsson, publisher of the local newspaper, who gave little indication about the reason for the visit. No sooner does the Op arrive, than the body count begins to climb . . . starting with his client. With this last honest citizen of Poisonville murdered, the Op decides to stay on and force a reckoning--even if that means taking on an entire town.