"Unspeakable Crime: The Killing of Jessica Chambers" brings to the forefront the gruesome and horrific murder of Jessica Chambers, a 19-year-old Mississippi teenager who was doused in gasoline and set on fire. In this active crime investigation, viewers explore Chambers' murder, giving an inside look into the trial of Quinton Tellis, a local black man who is accused of the crime. Tensions are high as the small town in Mississippi seeks the truth while the racial divide continues to grow.