Strange Invaders (1983) Horror, Sci - Fi

Charlie's ex-wife disappears, and he travels to where she grew up--a rural town in the Midwest--to look for her. But, surprisingly, nobody knows about her or any of her many relatives, the Newmans. He meets aliens; but when he contacts the FBI, they don't believe him. He tells his story to a tabloid; and suddenly, he is chased by the aliens.