The Head is the story of Jim, a trade-school student in New York City who awakens one morning to find that his cranium has enlarged to mammoth proportions. A week later, out bursts Roy, a little purple alien with an odd sense of humor who has taken up residence in Jim's head. Roy needed a place to stay to adapt to the Earth's environment while on a mission to save the world from a power-hungry alien named Gork. Aiding Jim and Roy are Jim's girlfriend, Madelyn; his personal physician, Dr. Richard Axel; and a group of "human anomalies". The theme of the story is to reinforce the value of diversity, tolerance, acceptance of differences, and working together to solve problems.
