In a quiet Tennessee town, a high school sociology class takes on a mystery that has lingered for decades. Led by teacher Alex Campbell, the students of Elizabethton High School begin investigating the Redhead Murders - a series of unsolved killings that once captured headlines across the South before fading from public memory.

What starts as a classroom project soon evolves into a remarkable real-world investigation, as the students uncover new leads, connect long-overlooked clues, and bring fresh attention to victims who were nearly forgotten. Along the way, they discover that the search for answers is about more than solving a case - it's about giving a voice to the people at the center of it and proving that determination can come from the most unexpected places.