Marketing manager Tiana Holliday just landed her dream job at an award-winning agency in New York City. There's just one problem: cocky playboy Nathaniel Lawson, her old grad school nemesis, is her new officemate.

As the firm's rising star, Nathan never had to compete for prime clients until all-work and no-play Tiana struts into his workspace. When an opportunity arises to manage a lucrative sports car account and win a big promotion, he challenges her to a wager: Loser does the winner's bidding for one month. But their friendly competition suddenly threatens to erupt into an all-out battle of desire.

As they straddle the line between love and war, they just might discover that challenging each other outside the boardroom is even more satisfying than advertised.