The Girl Next Door is a teen film starring Elisha Cuthbert and Emile Hirsch, directed by Luke Greenfield, about an honors student's pining love for the girl next door, who, as he finds out later, is a former porn star.

Plot

Ambitious Westport High School senior, Matthew Kidman dreams of a career in politics. He has been accepted to prestigious Georgetown University, but will only be able to afford it if he can win a large scholarship. With graduation approaching, he struggles to find anything truly memorable about his high school experience. However, his luck changes when he meets his beautiful next door neighbour Danielle. The outlandish Danielle and the steady Matthew each turn out to be the perfect complement for the other, and they are immediately smitten with one another. However, the relationship is challenged when Matthew discovers through his porn-enthusiast friend Eli that Danielle was recently an adult film actress under the stage name "Athena".

Following Eli's advice on how to deal with this incredible revelation, Matthew takes Danielle to a sleazy motel. Danielle guesses that Matthew has discovered her past and punishes him by performing a humiliating striptease and offering herself to him sexually. When Matthew becomes distressed and asks why she is degrading herself for him, Danielle calls him out on his base intentions and abruptly ends the relationship. Matthew goes to Danielle's house the following day and attempts to reconcile with her, but learns that she is returning to the porn industry, and is leaving for Las Vegas with her ex-boyfriend, porn producer Kelly.