Build a movie plot around this: what chemical did grandmother use to poision chocolate box? Aging chemical.
A:
Danielle (Julie Benz), Tiffany (Nicole Bilderback) and Brooke (Monica Keena) are the three most popular and most nasty girls in their high school. While the leader Danielle is used to getting what she wants, she is unable to attract lonesome ex-jock Drew (Jonathan Brandis) due to his mourning over the death of his girlfriend Charity Chase. Although Charity was believed to have committed suicide, this wasn't the case as Danielle, Tiffany and Brooke lured Charity to a cliff, hoping to terrorize her into breaking up with Drew, but ended up killing her by accident.A year to the day of Charity's death, Romanian foreign exchange student Katarina (Suzanna Urszuly) arrives during the class of clumsy Media Arts Professor Mr. Chauncey (Christopher Lloyd). Katarina and Drew immediately become friends. Jealous from this, Danielle tries to do everything in her power to stop this friendship developing into love. In an attempt to get close to Drew, Danielle works at the elderly home where Drew is also working. While there, she is assigned to look after an old lady (Janet Leigh) whom she believes is in a coma. Danielle, Tiffany and Brooke use this opportunity to raid the old lady's cupboard and eat her box of chocolates.In the following two weeks, the three girls begin to notice that something strange is happening to them, they are receiving back pains and their hair is turning gray - to their horror they discover that they are aging at a rapid speed. They believe this has something to do with Katarina whom they now think is in fact Charity's ghost coming back to seek revenge. The three decide the only way to regain their youth is to kill Drew and let his spirit be with Charity. On the night of Danielle's 18th birthday party, the three lure Drew to the same gorge where Charity died and attempt to shoot him. Katarina shows up and says she is not Charity's ghost. Danielle briefly ponders this but decides to shoot them both anyway. However, Brooke (the kindest of all the three) says that they have gone too far and tries to...