In the gritty small-town landscape of 1978 Speedway, Indiana, The Speedway Murders unravels a mystery surrounding four teenagers toiling away on the graveyard shift at their local Burger Chef. When police respond to a midnight call there, they discover the restaurant eerily deserted -- lights aglow, back door ajar, and the young workers vanished without a trace. The enigma deepens when, the following day, the bodies of the teenagers are discovered in the depths of the nearby woods. Employing reenactments to explore four divergent theories, the film leads the audience through the intricacies of that grisly night, challenging assumptions, casting doubt on the innocence of various characters and weaving an intricate web of intrigue.