
Plot
A child is witness to an assault on a monk by the gang of Lorenzo the Fifth. The monk escapes and takes refuge in the estate of Doña Carlota, a countess who lives with her son Juan and daughter Beatriz. Basilisa, the maid, conjures the devil to free her son from an irreversible illness, but to do so the evil must be transmitted to an innocent soul, and for that she chooses Beatriz. The child begins to be the victim of a possession, for which everyone blames the monk.
Trailer
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Cast

Carmen Sevilla
Doña Carlota

Nadiuska
Basilisa

Jorge Rivero
Fray Ángel

José Sacristán
Máximo Bretal

Sandra Mozarowsky
Beatriz

Elsa Zabala
Saludadora

José Lifante
Rata

Óscar Martín
Juan

Eduardo Bea
Tres Dedos

Pedro Luis Lavilla
Gondarín

Juan Antonio Peral
Pelos

José Luis Velasco
Cepillo

Sandalio Hernández
Cristamilde

Óscar Cortina
Herrero

Juan Miguel Cuesta
Voz en off (uncredited)