Earl and Lizbeth Lander are dog breeders who live near the city of Toledo¸ Ohio. Their nephew¸ Isaac Lander¸ has called for an investigation into the couple based on their state when he last visited. He found his Aunt and Uncle to have gained nearly twice their weight and acted in a strange manner. The police are no help¸ so he has called on outside aid before he leaves the area to return home. Little does he know that there are worms of another world hiding all around¸ giving secrets to their hosts in exchange for their bodies.