Halloween: The Curse of Michael Myers (1995)

Continuity mistake: Mrs. Strode's shoes change when she comes in the house from cleaning the porch and goes downstairs.

Mrs. Blankenship: A long, long time ago, it was a night of great power. When the days grew short, the spirits of the dead, returned to their homes to warm themselves by the fire's side. All across the land, huge bonfires were lit. Ohhh, there was a marvelous celebration. People danced, and they played games, and they dressed up in costumes, hoping to ward off the evil spirits. Especially the boogey man.

Trivia: The original version of the film that was created before the plethora of reshoots (known as the "Producer's Cut"), was a famous and infamous "legend" among fans. For many years, it was only available illegally and in generally poor condition through bootleg copies that were sold at conventions and festivals, although it eventually found its way online. It wasn't until 19 years after the theatrical cut debuted that the Producer's Cut was given any sort-of official release, when it was included in a Limited Edition Blu-Ray boxed set of the series. It has since also been given a stand-alone release on Blu-Ray.

Question: I've seen this movie three times and there is still something that I don't understand. What exactly is Michael Myers curse supposed to be and why does this curse involve him killing his family and their friends?