Horror directed by Víctor Matellano based on "Vampyres" (1974) directed by José Ramón Larraz.
Elenco:
Conrado San Martín
,
Antonio Mayans
,
Caroline Munro
,
Marta Flich
,
Almudena León
,
Christian Stamm
,
Verónica Polo
,
Anthony Rotsa
,
Víctor Vidal
,
Fele Martínez
,
May Heatherly
,
Hilda Fuchs
,
Lone Fleming
.