Michael Myers is a fictional character in the Halloween movie franchise. In the original film, released in 1978, Michael Myers is portrayed as a relentless and silent killer who is fixated on his sister, Laurie Strode. The reason for Michael’s obsession with Laurie is not entirely clear, but there are several theories that attempt to explain his behavior.

One possible explanation for Michael’s obsession with Laurie is that she represents a symbolic link to his past. In the original film, Michael is depicted as a young boy who murders his older sister on Halloween night. He is subsequently institutionalized, but escapes years later and returns to his hometown to continue his killing spree. When Michael sees Laurie, he may see a reflection of his own past, which could trigger his fixation and drive him to pursue her above all others.
Another theory suggests that Michael’s fixation on Laurie is related to his desire for a “pure” victim. In the original film, Michael is shown stalking Laurie and her friends as they go about their lives in the days leading up to Halloween. However, he only begins to attack them when they engage in behavior that he deems immoral or sinful, such as smoking marijuana or having premarital sex. Laurie, on the other hand, is depicted as a virtuous and responsible young woman who is focused on her studies and her job as a babysitter. Michael may see her as an ideal victim, someone who is worthy of his attention and who represents a certain purity or innocence that he desires.
Another possible explanation for Michael’s obsession with Laurie is related to his desire for control. Throughout the Halloween films, Michael is depicted as a figure who is fixated on order and control, often killing those who challenge his authority or disrupt his sense of order. Laurie, as a babysitter, represents a figure of authority and control over the children in her care. By targeting her, Michael may be attempting to exert his own control over her and her charges, as well as over the town of Haddonfield more broadly.
Finally, some have suggested that Michael’s fixation on Laurie may simply be a plot device, used to create tension and suspense in the film. In this view, Laurie is simply a victim who happens to be in the wrong place at the wrong time, and her connection to Michael is largely incidental.
In conclusion, there is no single answer to the question of why Michael Myers is so obsessed with Laurie. The character’s motivations are intentionally opaque, and are subject to interpretation by the viewer. However, some possible explanations for his behavior include his desire for a symbolic link to his past, his fixation on “pure” victims, his desire for control, and the use of Laurie as a plot device. Regardless of the specific explanation, however, the character of Michael Myers remains one of the most enduring and iconic figures in the horror genre.