After a night of testing different hair styles, Monica wakes up on prom day to a nightmare – the worst BAD HAIR DAY EVER! Desperate to fix it and with no way to get to the salon, Monica is forced to team up with a down-on-her-luck cop, Liz, who shows up at her door in pursuit of a multi-million dollar necklace. The unlikely pair ultimately discover that they have more in common than they thought as they try to keep the necklace safe from a villainous jewel thief and get Monica to prom on time!