Nobody hates each other. Just my sister (whose farmhouse it is has) three teenage daughters who are at daggers drawn with her at the moment. Their dad died a few years ago and the place reminds us all of him, which will be awkward - particularly as my sis is now shacked up with his best man (who will also be there). Add to this the fact that my wife and I will be there with my daughter and will be joined (albeit briefly) by my ex on Boxing Day and it doesn't promise to be exactly restful.
Ho-hum.