It's Christmas and Miranda, for once, would like a relaxing and fun time without her parents. After Penny's Best Christmas Jumper Party on the 23rd of December (it's even more humiliating than it sounds) Miranda and Stevie try to spend Christmas at the shop with Gary, Clive and Tilly. What could possibly go wrong? Well, after the online present shopping doesn't arrive, the infuriating encounter at the post office (is there anything more annoying than a 'we tried to deliver but you were out' card?), a run-in with some carol singers and a couple of arguments with friends, maybe Christmas would be better with her family.