How to Lose a Guy in 10 Days tells the story of a journalist (Hudson) who sets out to write an article about the best way to sabotage a relationship within 10 days. McConaughey's character is so convinced that he can make any woman fall in love with him within 10 days that he makes a bet with his co-workers. When they each learn of the other's hidden agenda, things fall apart quickly but (spoiler alert!) there's a happy ending for these two fictional characters.