In 1987, Kathy Odom is found stabbed to death in her home. There are several signs suggesting that she knew her attacker, but detectives cannot make an arrest. Years later, a new technique is developed that allows DNA to be collected from items used in a murder. The lamp cord that was tied to Odom's wrist is subsequently tested for DNA. Her brother-in-law, Greg Markwardt, turns out to be a match for the profile and after fifteen years, is arrested for the murder of Kathy Odom.
