When a young mother, Selonia Reed, 26, is found brutally murdered in her car, detectives turn over every rock in small town Hammond, Louisiana in search of her killer. Selonia's case languishes for more than 30 years before justice is finally served. 

When Betty Jones, 65, and Kathryn Crigler, 81, are brutally attacked in a 1990 home invasion, the tiny community of Starkville, MS is left living in fear. Decades pass, until a detective devotes himself to cracking the case using new technology.