When her boyfriend dumps her, Alex out of uncharacteristic fury throws his anniversary gift that by a cruel twist of fate dents Harry Styles' car. As a poor college student with no money, she is forced to spend 25 days with him to pay off her debts. But a lot can happen in 25 days, and Alex had no idea that her time with Mr. Arrogant would turn into something more.

Tessa Young is an 18 year old college student with a simple life, excellent grades, and a sweet boyfriend. She always has things planned out ahead of time, until she meets a rude boy named Hardin, with too many tattoos and piercings who shatters her plans.