The sensational car races in Le Mans, France, in 1955 captured the world's attention. Intense rivalry among teams Ferrari, Mercedes, and Jaguar culminated in a severe accident: during a risky maneuver, one of the cars veered off the track and crashed into the crowd, resulting in the deaths of 83 people and injuries to over 120 others. Many years later, a filmmaker seeks to uncover the reasons behind this tragedy, which claimed members of his own family.