EEGAH!

One night after shopping, Roxy Miller (Marilyn Manning) is driving to a party through the California desert when she nearly crashes into Eegah (Richard Kiel), a giant prehistoric caveman. She tells her boyfriend Tom Nelson (Arch Hall Jr.) and her father Robert Miller (Arch Hall Sr.) about the giant. Her father, a writer of adventure books, decides to go into the desert to look for the creature and possibly photograph it. When his helicopter ride fails to show up at the designated pickup time, Tom and Roxy go looking for him in his dune buggy.

Roxy is soon kidnapped by Eegah and taken back to his cave while Tom searches for her. In Eegah's cave, Roxy is reunited with her father, who has been captured as well. He tells her that he has begun to communicate with the caveman and has developed a theory as to the creature's astounding longevity. Eegah begins to express what seems to be a romantic interest in Roxy. Her father, fearful that the creature may kill them both if he is rebuffed, suggests she endure as much of it as she can bear. Eegah remains relatively tame, however, and Roxy even ends up giving him a shave, which distracts him long enough until Tom arrives and helps the Millers escape.

Enraged, Eegah follows them back to civilization to seek revenge. He goes on a rampage through the town until he finally locates Roxy, and attempts to kidnap her from a party. The police soon arrive and confront Eegah, who is shot and killed.

Eegah follows Roxy and her companions back to civilization, goes on a rampage, and is ultimately shot and killed by the police.

The film concludes with the tragic downfall of Eegah, the out-of-time caveman who cannot fit into the modern world. His violent pursuit of Roxy and subsequent death highlight both his loneliness and the impossibility of coexistence between prehistoric and contemporary life. The ending mixes horror and pathos, underscoring the blend of camp and melancholy that defines the film's tone.