To dodge an arranged marriage to Bram Calloway, the notoriously ruthless (and rumored insufferable) heir to Calloway Steel, Sienna Voss, the youngest daughter of the Voss shipping dynasty, hires a charming stranger to pose as her fiancé at her family's engagement gala just long enough to convince her parents she's already spoken for. Meanwhile, Roan Ashford, the reclusive CEO of Ashford Aviation, has his assistant scheme up a fake date of his own: a woman to pose as his girlfriend so his grandmother will finally stop parading eligible heiresses in front of him at the same gala. Two decoys. One ballroom. A mix-up at the coat check. Sienna and Roan end up in each other's arranged deception, she thinks he's her hired fiancé, he thinks she's his assistant's plant. By the time they realize their mistake, they've already been introduced to both families as a couple, a photo of them "sealing it" with a kiss has hit the society pages, and their grandmothers have unilaterally moved up the wedding to next month. Now trapped in a marriage neither of them asked for, with two families who'd be scandalized to learn the truth, Sienna and Roan strike a bargain: play along for six months, then file for a quiet divorce. But close quarters, a shared boardroom rivalry neither saw coming, and a slow-burning attraction they can't explain start rewriting the terms of the deal until walking away starts to feel like the real mistake.
