Delia Payne is a troubled 18 year old girl. Her brother is the teenage heartthrob, Liam Payne. It doesn't help Delia that her life and actions are constantly being reflected on her brother. When Liam comes back after a 1 year tour of the US, he misses out on Delia's worst year yet. Liam makes it his mission to find out what's been changing his sister. He enlists the help of none other than Zayn Malik for the job. Liam and Zayn both find out the heartbreaking news of what lurks in Delia's past. Will Zayn and Liam think differently of Delia? Will Liam hate her because of it? Will Delia ever heal?