The Vineyard (1989)
An island of death fueled by the blood of its victims.
Dr. Elson Po is an evil winemaker whose special potion makes him immortal. But when his concoction loses its power, Dr. Po tries to convert a beautiful actress into his new fountain of youth. Lured to Dr. Po's secluded island, a group of lusty young women become the doctor's prisoners and must face off against a powerful army of undead zombies.