Night of the Flesh Eaters.

On the most evil night of the year, a beautiful blond woman and ruggedly handsome archeologist hitman find themselves trapped in a forest haunted by bizarre flesh eating Native American demon zombies. As they flee the woman's crime boss husband, who seeks to murder them for their illicit love affair, their car is destroyed in a head-on collision with one of the demons, a Stone Man. The blond woman and assassin must escape the perils of the dark and evil forest, on foot, without becoming demon food or getting themselves slaughtered by the woman's vengeful, fat cat husband.