Behold a Christmas of sin with Álex de la Iglesia's 1995 horror-comedy classic, The Day of the Beast.
The story revolves around a Basque Roman Catholic priest dedicated to committing as many sins as possible, a death metal salesman from Carabanchel, and the Italian host of a TV show on the occult. These go on a literal "trip" through Christmas-time Madrid to hunt for and prevent the reincarnation of the Antichrist.
Winner of the 1995 Goya Award for Best Director, The Day of the Beast is quite literally a devilish holiday favorite.