As the bubonic plague spreads through Italy, a group of nobles and servants retreats to a villa, where their lavish getaway quickly spirals into chaos.

Students Hayley and James are young and in love. After saying goodbye for Christmas at a London train station, they both make the same mad split-second decision to swap trains and surprise each other. Passing each other in the station, they are completely unaware that they have just swapped Christmases.