The Creeper did not come from the same dimension as the Morphodites, but instead had been in their dimension forever. The Creeper did not rip Darry's eyes out as he did because it is forbidden if The Creeper is free from his cage. The Creeper's eyes had been in Darry's head LONG before the experiment, and the experiment was only used to eliminate the memory of the Creeper from the Creeper's mind. The Creeper must now find a way to free himself from his cage and hunt Darry down - or what would be worse - to eliminate Darry. Thank you.
The Creeper was trapped by a group of scientists from an organization called Morphodite that hunt monsters. The Morphodite scientists dug a tunnel into the southeast corner of the underground lab and caught the Creeper and used a specially designed transmitter to send him to the surface. The Creeper was then still in shock over Darry's death and Morphodite abducted him to perform a trans-dimensional experiment on him to stop the Creeper's horrific singing. The Creeper escaped from Morphodite and went on a rampage of destruction all over the land and had to be tracked down and taken back. At the end of the movie the Creeper killed the Morphodite doctor who made the experiment on him and crashed his truck near the freeway, trapping the Creeper inside a steel cage with the Morphodite scientists, who would make him Sing. The Creeper managed to drive out of the truck and take it with him and flee away. Darry then tries to get out of the cage and the Creeper kills him before he hides his eyes. 7211a4ac4a