Vicky loves Ricardo but Ricardo loves Barbara. So, Vicky goes to a gypsy witch who convinces her she must make a pact with Satan in order to cast an effective love spell on Ricardo. After Vicky gives her body and soul to the Dark One, she engages with Ricardo in a passionate night of lovemaking that is cut short by Satan, who, sensing that Ricardo has not completely fallen under the spell, orders Vicky to kill him. Following Ricardo's death, his brother Carlos is haunted by nightmares of the dead sibling, who appears and takes possession of Carlos in order to get his revenge on Vicky.
Ana Luisa Peluffo
as Vicki
Gonzalo Aiza
as Ricardo Santamaria / Carlos Santamaria
David Reynoso
as Detective Méndez
Beatriz Aguirre
as Mrs. Santamaria
Roberto Cañedo
as Psychiatrist
Silvia Suárez
as Margarita
Norma Somarriba
as Bruja
Barbara Wells
as Bárbara
Bertha Shute
as Elvira
Alma Nuri
as Mujer poseída por Vicki
Juanito Belmonte
as
Ascanio de Montemayor
as
