This is rather unusual amongst horror films in that the person who has supernatural powers and ultimately uses them to kill people isn't the villain of the story but its victim.
De Palma is even ballsy enough to more or less parody his own opening scene from this film with the opening scene of five years later,.
This Site Covers 100 Years Of Naked Pop Culture.
Carrie White, a shy, friendless teenage girl who is sheltered by her domineering, religious mother, unleashes her telekinetic powers after being humiliated by her classmates at her senior prom.