
The film is a parody of multiple genres including the horror, slasher, and mystery film genres. Several 1990s films and TV shows are also spoofed, and the script primarily follows the plot of the slasher films Scream and I Know What You Did Last Summer. Some films and TV shows like Halloween, The Shining, Friday the 13th, The Usual Suspects, The Sixth Sense, The Blair Witch Project, The Matrix and Buffy the Vampire Slayer were also parodied in some scenes.
Plot
On Halloween night, Drew Decker receives a threatening phone call while home alone. Chased outside by somebody dressed as Ghostface, she is stripped to her bra and panties before being stabbed in the breast, removing one of her silicone implants. Her father, who is distracted by receiving fellatio, accidentally hits her with his vehicle, and she looks at her murderer just before she is fatally stabbed.
Cindy Campbell meets up with her boyfriend Bobby Prinze and her friends, Brenda Meeks, Ray Wilkins, Greg Phillippe, Buffy Gilmore, and Brenda's stoner brother Shorty. News teams, including hack reporter Gail Hailstorm, converge on the school because of Drew's murder. Gail seduces Buffy's intellectually disabled brother, Special Officer Doofy, to elicit information from him.
While in class, Cindy notices the killer watching her from outside before receiving an ominous note and realizes Drew was murdered exactly one year after she and her friends accidentally killed a man by running him over with a car then dumping his body in a lake. After football practice, Greg finds a photo of his small penis on his locker saying "I KNOW" on it. Believing Ray took the photo, he confronts him & their friends.