Seventy-five years ago, a madman nicknamed the Torso Killer terrorized Cleveland. His horrific spree lasted four years and crisscrossed the entire city. Overall, he was credited with more than a dozen murders. And he was never caught. Today, forensic scientist Theresa MacLean is called to an abandoned building where a desiccated, decapitated body has been found in a room that's been sealed off for years. Although there's no immediate proof, everyone assumes the same thing: that the newly discovered corpse was a Torso Killer victim. The body has decayed beyond recognition, leaving few forensic clues, but Theresa sees this as an opportunity to shed some light on a big piece of Cleveland's past that until now has been shrouded in mystery. But then another body—this one recently deceased—turns up, and all signs at the scene seem to indicate the work of a new Torso Killer.