After the death of a high school track star during a race, a mysterious, fencing-mask wearing killer begins murdering her friends and teachers. Who could the killer be? Her disgruntled coach? Her angry sister? Her violent boyfriend? As the bodies pile up, a twisted mystery unfolds, slowly revealing itself as it moves towards its bloody climax. One of the quintessential high school-set slasher films of the early ‘80s, Vinegar Syndrome is bringing GRADUATION DAY to Blu-ray, newly restored in 4K and presented in its original aspect ratio for the very first time!