Tombs of the Blind Dead (1971)
Tombs of the Blind Dead is a 1971 Spanish horror film written and directed by Amando de Ossorio. Its original Spanish title is La noche del terror ciego, which means "The Night of the Blind Terror". The film is the first in Ossorio's Blind Dead series, and its success helped kickstart the Spanish horror film boom of the early Seventies.
More at Wikipedia.