Charlotte is doing her good deed for Christmas by babysitting her sisters toddler at a moments notice - even though she should be packing a suitcase to spend Christmas at her posh boyfriend's parents house. She is meeting them for the first time and they live in a palatial, detached house in the countryside, which isn't helping her nervous disposition. Will spending a few hours with her darling neice prove a timely distraction...Or will it all go horribly wrong..?