Lonnie Franklin Jr. was arrested in July 2010 after a 25-year killing spree in which it is thought he could have killed over 100 victims, potentially making him the most prolific serial killer in history. His arrest was not the product of detective work but completely accidental, the result of a computer DNA match that linked him to a possible 20 victims. This film investigates the reason the killings were able to go on for so long, and is a story of cruel crimes, a police force that didn’t care and a community estranged and abandoned from the rest of society.