Alexia Joan Adams is what most would casually describe as a "lustful middle-aged tramp". However, one night while engaging in a little girl-meets-girl play, a 'big problem' appears in the well-to-do form of the Swedish professor of Microbiology, Boje Abramson, and from there the family Christmas dinner becomes a night of outdoor public play that will live on as Alexia's biggest night ever.