Galaxy of Terror

A rescue crew is sent to investigate a crashed spaceship on a remote planet, where they discover that their darkest nightmares are being brought to life by a mysterious pyramid structure. As they try to escape, they realize that the planet's creatures are manifestations of each person's deepest fears, and that the true horror may not be the monsters themselves, but the evil entity controlling them - The Master, who was masquerading as the ship's cook, Kore.