This Bunuel film is based on a story written by a certain Manuel Reachi (who incidentally, like the director Bunuel, was born in Spain and died in Mexico). The film indirectly (and in some ways directly) glorifies the pious Christian faithful--here personified by the lady of the house and her chief maid who can spot "the devil" before the others do and is ready to drive it out as Jesus did in the Bible. This is a definite departure for Bunuel, who has never really shown a true Christian point of view in his films (except in Nazarin) but only chose to ridicule often than respect it.
The film is also a major departure for actor Fernando Soler playing the role of the rich landowner who gives a tepid performance compared to the one he gave in the other Bunuel film "The Great Madcap" (1949) made 2 years before this film.
The film is also a major departure for actor Fernando Soler playing the role of the rich landowner who gives a tepid performance compared to the one he gave in the other Bunuel film "The Great Madcap" (1949) made 2 years before this film.