Lottie Tomlinson gets home one day only to find out that the boy who was her personal bully as a kid is back in town. She finds herself in a very strange situation as Harry Styles goes from being a nightmare to a very sweet boy. While trying to survive Harry’s bipolar personality, Lottie fights to save her relationship with her boyfriend Zac, who may or may not end up being a disappointment. Harry showed in her life like the light at the end of the tunnel, but they will also have to make their way through the dark.