This movie is the first of a trilogy that Sebastián D'Arbó, a specialist in parapsychology, filmed on occult topics. The second film is El ser (1982) and the last one Más allá de la muerte (1986).
Doctor Mainen
The Traveler
Parapsychologist
Teresa (as Berta Singerman)
Carlos
Priest
Mother
Father
Clara
Eva (as Montse Prous)
Monja Lega
Mayordomo
Sirvienta
Jefe de Estación
Empleado de Tren
Aparecido
Vecina
Ayudante de médium
Self (uncredited)
Director
Editor
Screenplay
Makeup Artist
Costume Design
Set Decoration
Music
Director of Photography