The hating game

Lucy and Josh are forced to work together after their respective publishing companies are merged. Complete opposites in every way possible, they despise each other. Their rivalry comes to a head when they go face-to-face for the same promotion. Realizing nobody wants to work under the other, they make a bet: whoever does not get the job has to quit.

However, both become increasingly attracted to each other and share a passionate kiss in the elevator before Lucy goes on a date with a co-worker, Danny. At a company paintball event a few days later, Lucy collapses due to a fever and is brought home by Josh, who has her checked by his brother Pat, a physician. Lucy overhears that Josh needs a +1 for his brother‘s wedding and offers to accompany him to get even. After they kiss again, Josh asks her to sort out things with Danny first, as he does not want to be just a fling for her. Later that evening, Josh invites Lucy to his apartment and reveals that he has a strained relationship with his father because he dropped out of med school, while his brother was always the favorite. They become closer, but Josh refuses to have sex with Lucy, angering her.

During his brother‘s wedding weekend, Lucy and Josh finally have sex. After she finds out that Pat‘s wife is Josh‘s ex-girlfriend, she is initially angry until Josh explains to her that he is over her. She witnesses Josh‘s father belittle him and stands up for him, impressing Josh. Back at home, Josh offers Lucy to start a real relationship and forget about their bet.

The next day, Lucy overhears and misinterprets a conversation between Josh and their boss, concluding that Josh has been using their romance to distract her from the promotion. Enraged, she vows to beat Josh for the job. At the day of the promotion competition, Lucy gets the job as it turns out Josh had already quit to join another company. The two kiss and become a couple.