Winslow is a sleepy Southern town where everyone knows everything about everyone, or at least they think they do until Edna Potter, the resident dragon, shocks the community by suddenly retiring from her post as the high school English teacher. It seems the dour spinster has been taking mail-order detective courses over the years and is ready for a new career as a private eye. Edna turns from terrorizing teens in the classroom to tailing suspects and uncovering dirt. Quickly Winslow is bubbling with mystery as Ednas former students, neighbors, and friends turn to Miss Potter to help solve their problems.
Ednas first case is to find runaway teenager, Carrie Owens. Soon Edna is up to her second chin in trouble. Police Chief Wayne Duncan warns Edna to stop, says Winslow doesnt need a detective. Then her home is burglarized and shes attacked by vicious dogs, but Edna keeps on coming, discovering family scandals, a missing wife, and finally a murdered high school football hero. Armed and dangerous, Edna is too busy turning up the truth to be scared off. Soon its her suspects who are running for cover, because they know theres no way around the indomitable Miss Potter.