Paul Rivers, an ailing mathematician lovelessly married to an English émigré; Christina Peck, an upper-middle-class suburban housewife and mother of two girls; and Jack Jordan, a born-again ex-con, are brought together by a terrible accident that changes their lives.
A man, determined to win the neighborhood's annual Christmas decorating contest, makes a pact with an elf to help him win. However, the elf casts a spell bringing the twelve days of Christmas to life, bringing chaos to the small, unsuspecting town.