Callie Edwards is a normal 18 year old girl until she gets some completely unexpected news that turns her life upside-down. She decides she needs to get away from her family and life until further notice. In a spur of the moment decision, Callie boards a plane to London and gets a lot more than she bargained for. 5 crazy, adorable, amazing, talented teenage boys, also known as One Direction.

Callie Edwards has embraced the life of a superstar's girlfriend. Harry Styles is the love of her life, but is she the love of his? When Harry's ex-girlfriend shows up on their private romantic getaway, will Callie be able to accept that she's not the only girl in Harry's life or will there be no more Hally?