Naomi Westfield has an Instagram-perfect life, including the perfect fiance. Nicholas Rose holds doors open for her, remembers her restaurant orders, and comes from the kind of upstanding society family every bride dreams of being a part of. They never fight, complain, or disagree. They're preparing for their lavish wedding that's three months away. And they are miserably and utterly sick of each other. Tired of contorting herself to fit the ridiculous standards demanded by Nicholas's family, Naomi wants out of the relationship. But there's a catch: Whoever calls off the engagement will have to foot the enormous bill for the wedding. When Naomi finds out that Nicholas, too, has been feigning contentment, the two of them go head-to-head in a battle of wills to see who can annoy the other into surrendering through pranks, sabotage, and all-out emotional warfare. But now that they have nothing to lose, they're finally being themselves. They're having so much fun getting on each other's nerves that it starts to feel like something else entirely. As Naomi discovers hidden feelings for Nicholas buried under three years of simmering resentment, she wonders if he feels the same way. Suddenly, the countdown to the wedding that may or may not come to pass feels more like a race to mutual destruction--and Naomi doesn't want to be left alone at the finish line.