Andie Anderson sat at her desk at Composure magazine, staring at her computer screen in frustration. She had just been assigned another fluffy article - this time, on romantic clichés that would allegedly make men run for the hills. She rolled her eyes. As an aspiring journalist, she dreamt of writing about pressing issues, not this nonsense. Suddenly, a thought struck her. If she was going to write an article on "How to lose a guy in 10 days," then she needed a guinea pig. With newfound determination, she began to search for the perfect target for her experiment at the bar with her friends as she spots Ben Barry who unknown to her just made a bet to make her fall in love with him in 10 days.