After a couple of movies flopped badly, a film star, Jack, agrees to a TV role as Darrin in a revival of Bewitched. His intent is to make Darrin the major part. He wants an unknown to play Elizabeth Montgomery's role (Samantha) so she won't try to upstage him. A real witch trying to act human becomes romantically interested in Jack and is cast as Samantha because she can do the nose twitch. But the audience prefers her to him. She becomes disillusioned when she realizes what an egotistical jerk he really is. After quarrels in which she uses her powers, Jack finally realizes he's been a jerk and reforms.