Incubus (1966)

Plot

On a mysterious island teeming with demons and supernatural beings, a lone man finds himself embroiled in a fierce struggle against malevolent forces. As he confronts these dark entities, he must navigate the island's eerie atmosphere and uncover its secrets. With every encounter, the stakes rise, pushing him to his limits in a battle for his soul and the fate of the island itself. The tension escalates as he faces not only external horrors but also his inner demons, leading to a riveting showdown between good and evil.