In a world where the holidays are run by the efficient Bureau of Yuletide Affairs, a bitter and burned-out Ghost of Christmas Past decides to go AWOL while on a "mission" and leave his "target" stranded in 1965.

In London, four very different people team up on a jewel heist, then try to double-cross one another for the loot, complicated by their efforts to fool a very proper barrister.

In 1969, two substance-abusing, unemployed actors retreat to the countryside for a holiday that proves disastrous.