A Candle for the Devil (1973)

Plot

In a secluded Spanish hotel, two devout sisters take their faith to a chilling extreme. Driven by a twisted sense of righteousness, they target female guests whose lifestyles clash with their rigid moral beliefs. As the bodies pile up, the sisters' sinister actions reveal a dark underbelly of fanaticism and repression. Their hidden sins and the haunting atmosphere of their establishment create a tense narrative that explores the dangerous intersection of faith and fanaticism. As the sisters' grip on their twisted ideals tightens, the hotel becomes a perilous trap for unsuspecting travelers.