Harry Styles is a single father of three, working two jobs to try and cater for his family, everything is always the same. That is until rebel Louis Tomlinson finds himself crossing paths with Harry when he jumps onto his roof. Harry and Louis instantly become enemies, wanting nothing to do with each other. But Louis also has other ideas, wanting a challenge and so he finds himself going back to Harry's more times than he pleases. What will happen when Harry's children slowly begin to grow attached to Louis? What will Harry do in order to set things right?