Satan's Blood (1978)
Andrés and Ana, drawn into the allure of an enigmatic couple who insist they’re old friends, accept an invitation to a stunning, remote villa for an evening. As the night progresses, unsettling events unfold, hinting at a sinister undercurrent. When they agree to stay overnight, the couple unwittingly becomes entangled in a series of disturbing sexual encounters. Gradually, they uncover the horrific truth: they are pawns in a demonic ritual aimed at binding them as servants to the Prince of Darkness. What began as an innocent visit spirals into a nightmare of occult terror.
