Say Their Names examines the "Grim Sleeper" murders from the perspective of Bajan-American, human rights activist Margaret Prescod who founded The Black Coalition Fighting Back Serial Murders in the mid-1980s. The limited series will follow her journey as she seeks justice for Black girls and women killed in a wave of unsolved murders in South Los Angeles over a 30-year period, exposing police corruption and a cover-up that allowed Lonnie Franklin (aka Grim Sleeper) to murder for decades.