Ellery Queen, hoping for anonymity and some quiet time for writing, has rented a house in Wrightsville under the name Ellery Smith. The town, Wrightsville, appears ideal - attractive homes, friendly people, and little crime. The writer Ellery Smith is quickly embraced by the community, especially by the founding family of Wrightsville. All is tranquil, that is, until a series of arsenic poisonings earns Wrightsville the name Calamity Town.