Rose Summers is an ordinary girl who is 16 going on 17. She has known Harry Styles since she was four years old and have been best friends ever since. But feelings started to change, Rose starts to like Harry. But Harry moves on and joins a new crowd of friends...and leaves Rose all alone. Until he bumps into her for the first time in four years. But Harry doesn't remember who she is and Rose still thinks that he is the same old popular kid. Until she finds out a huge secret that could change their friendship for the better or for the worst...