Seventeen-year-old Olivia Owens isn't thrilled that her dad's getting remarried ... again. She's especially not thrilled that he cheated on her mom, kicked them out of their Rhode Island home, and cut Olivia out of her rightful inheritance.

But this former heiress has a plan for revenge. While hundreds of guests gather on the grounds of the gorgeous estate where she grew up, everyone will be thinking romance—not robbery. She’ll play the part of dutiful daughter, but in reality she’ll be redistributing millions from her father’s online accounts. She only needs the handwritten pass code he keeps in the estate's safe.

With the help of an eclectic crew of high school students and one former teacher, Olivia has plotted her mid-nuptial heist down to the second. But she didn't plan for an obnoxiously nosy wedding guest, an interfering ex-boyfriend intent on winning her back, greedy European cousins with their own agenda, or a vengeful second wife. When everything seems like it's going wrong, Olivia has to keep her eyes on what really matters: getting rich. And when she’s done, “something borrowed” will be the understatement of the year.