Barbra and Johnny drive to rural Pennsylvania to visit their father's grave. While in the cemetery, Barbra is attacked by a strange man. Johnny tries to rescue his sister, but the assailant strikes Johnny's head against a gravestone, killing him. After wrecking their car in a panic, Barbra escapes on foot, with the stranger in pursuit. She arrives at a farmhouse, where she discovers a woman's mangled corpse. Fleeing from the house, she is confronted by strange, menacing ghouls, including the man in the graveyard. A man named Ben arrives and takes her back to the house, driving the monsters away and barricading the doors and windows. While doing this, Ben finds a radio and a Winchester Model 1894. Throughout the night, Barbra slowly descends into a stupor of acute stress reaction and insanity.