The town of Adel, Ga., is rocked by a brutal robbery homicide, and locals quickly point to an outsider as the killer; over 20 years later, new evidence raises the startling question if an innocent man is serving life for another man's crime.

When a beloved chiropractor in Sauquoit, N.Y., dies suddenly under strange circumstances, investigators discover she's been murdered with a rare poison; the killer could only be someone she knew closely, and the case divides the town.

When an immigrant couple who settled in the Tennessee town of Cookeville is executed in their sleep and their house set on fire, investigators identify a suspect with motive; in their rush to make an arrest, they may have gotten the wrong man.

In rural Shelbyville, Ky., a body is found in the river; years go by until the police catch the killer, but some in town question if the suspect is even capable of committing the crime.

When a 22-year-old dancer goes missing, the men of the neighboring town who frequented the club she worked at become the suspect pool; wealth and status may protect a killer; a determined police officer works the case.