After the death of the paranoid emperor Tiberius, Caligula, his heir, seizes power and plunges the empire into a bloody spiral of madness and depravity.
Sylvia, an industrial scientist, is troubled by strange hallucinations related to the tragic suicide of her mother.
Mad Dr Frankenstein recruits an evil dwarf, a Neanderthal man, and others to help him put a brain in the body of a brute.
