It's Prom Night 1957 at Hamilton High. Just as Mary-Lou Maloney, the school's beautiful queen bitch, is about to be crowned Prom Queen she suffers a vengeful death at the hands of her jilted boyfriend. It's Prom Night again 30 years later and an innocent young girl unleashes the tortured secret from the past. Get ready Hamilton High, May-Lou may be dead and buried, but vengeance never rests in peace. Mary-Lou is back to claim her crown, and this time she's going to be Prom Queen, even if it kills her again!