Susana (Susana, demonio y carne or The Devil and the Flesh) is a 1951 film directed by Luis Buñuel. It is the story of a girl of questionable mental stability who escapes from incarceration and ends up at a plantation where she disrupts a working family's daily routines and chemistry.
Susana grollo fernandez is full of the unique touches of Buñuel's surrealism. The heroine, Susana (Rosita Quintana), is a beautiful inmate at a women's reformatory who escapes in the middle of a rainy night. When first seen, Susana's being thrown into a solitary cell for misbehaving and the correction officer says Imagine, she's been here two years and is worse than ever!.
In her cell she asks God's help, facing a shadow of the cross formed by the window bars from where a spider crawls away. The window breaks open and she escapes. She ends up at a ranch. Soon the whole household is involved in possessing her and fighting over her. Jesus, the young ranch helper; Alberto, the family's son and heir; and Guadalupe, Alberto's father, 'a God-fearing man and the faithful husband of the beautiful, patient Dona Carmen'.
Though the movie means to be steamy, Buñuel is apparently more amused than shocked by
(This is information generated from a Wikipedia article, licensed under the GNU Free Documentation License.)