Monica, a high school tech whiz, is determined to become prom queen and planning to go to MIT or a state university. She prepares herself the day before prom so she can save time when it comes, and thinks nothing will go wrong. But on the big day, she suddenly wakes up having a bad hair day, and her destroyed prom dress, broken shoes, and everything that can go wrong does go badly wrong. While all this is happening, Monica's friend Sierra witnesses everything. Then, a doorbell is heard and Monica opens the door to a lady claiming to be an Federal Bureau of Investigation agent. Liz seeks the necklace that Monica somehow ends up possessing, after buying it at an antique shop, wanting to recover it and get her job back. In verifying Liz's credentials, Monica discovers that Liz is not actually an FBI agent but a private investigator. Monica smartly deduces Liz's claim and she insists on coaxing Liz into giving her a ride around town to fix her hair, replace her outfit, and take her to get driving lessons in exchange for the necklace.