Opal Line self-identifies as a wallflower, an observer of her classmates' trials and tribulations, their triumphs and successes, and most importantly, their relationships and break-ups. Throughout her four years of high school, she's recorded almost every single person's dating history, including several of the teachers' ill-fated work romances. When a couple of students pay her for information, she suddenly finds herself at the center of an ever-expanding love triangle. Can Opal untangle the web before it traps her into an unbreakable knot before graduation? She's not so sure.