Harry hadn't been home for Christmas for three years straight, too busy with his world tour and signings and recording sessions. But this Christmas, he is going to be with his mum and sister. He's excited to bake cookies with his mum for the church's sale and to decorate the tree with Gemma. What Harry's not expecting is to see his ex-best friend Louis Tomlinson sitting at the dinner table on the night of December 23rd.