Plenty of thirtysomething women would be thrilled to look like a teenager.

But journalist Kathy Hopkins wishes she could be taken a little more seriously—or, at the very least, order a glass of wine without producing ID. Now her youthful appearance is forcing her into an undercover assignment she could do without: posing as a freshman at a small liberal arts college where, rumor has it, a secret prostitution ring is flourishing.

It could mean a career-making exposé. But right now, pretending to be eighteen means dealing with a Clay Aiken—obsessed roommate, late-night parties that test her aging body—and most embarrassing of all, a massive crush on a guy who's just turned legal. Suddenly, Kathy's got the chance to do it all over again, hopefully better this time. Fortunately she's a quick learner.