The Satanist (1968)

Plot

A young couple's idyllic marriage faces a perilous challenge when a captivating occultist disrupts their lives. As she lures them into a dark and seductive realm filled with drugs, sexual liberation, and sinister rituals, their bond begins to weaken. The couple must navigate this treacherous new reality, grappling with temptation and the unsettling influence of the unknown. As they delve deeper into this dangerous world, their love and commitment are put to the ultimate test, revealing the fragility of their relationship against the backdrop of the occult.