Monstrosity is a 1963 science fiction/horror film produced by Jack Pollexfen and and directed by . It is perhaps better known under its TV release title, The Atomic Brain. The film stars Marjorie Eaton, Frank Gerstle, , and Xerxes the cat. It tells the story of a wealthy elderly woman who wants to have her brain transplanted into the head of a young woman, so that instead of being old, ugly, and rich, she can be young, beautiful, and rich. Things do not go according to plan, however. Co-producer and co-writer Dean Dillman, Jr.,the older brother of actor Bradford Dillman, narrated the film.