When One Direction ducks into an alley to avoid over-enthusiastic fans, the last thing they expect to find is an unconscious teenage girl who, when they take her back to Louis and Harry's flat, can't speak and has no memory of anything other than her name. So what do they do? They claim her as Liam's cousin and have her live with each of them in turn as they try to find out what exactly happened to her. But as the boys get closer to Spencer, they realize they don't want her to leave... Meanwhile, someone out there knows the truth about Spencer, and they won't rest until they finish what they started in that cold, dark alley.