Scientist gets bit by a small alien

Five miles below the Earth's surface, a group of scientists is working in self-imposed isolation, perfecting a series of DNA experiments that could literally change the world. But when one of those experiments goes awry, it unleashes a nearly immortal organism--one capable of instant regeneration, and with an insatiable appetite for living flesh. Soon, nothing can contain the creature, and with the lab's life support systems quickly shutting down, the scientists grimly prepare for their final battle... A small group of scientists are working in self-imposed isolation below the Earth's surface. They are all working to create DNA which could change the world, but one of the scientists have been given an secret assignment, and when the assignment goes wrong, all hell breaks lose. The new creation is now aboard the ship and will destroy anyone who gets in its way, as it moves towards the surface.

Triton Indutries has created a genetically-engineered creature using DNA from human sources. During the course of the experiment, however, the host mother carrying the mutant escapes from the laboratory compound, giving birth shortly thereafter. The intellient "baby" beings hunting down and killing its male DNA donors, while at the same time trying to mate with its female donors. The head of the lab wants to destroy the monster before the press can get wind of the story, but the former head of security wants to expose the whole thing.

The story of a close encounter between a young scientist and some aliens just arrived on the earth.

A scientist interrogates an alien.

A spaceship containing specimens for an intergalactic zoo crashes on Earth near a small backwoods town. The specimens escape, and soon town folk start turning up mutilated.

Investigator searches for probe sent to Earth by aliens.

Archeologist Smith accidentally stumbles upon an ancient alien ship filled with treasures, along with the fatally injured, yet still alive, alien captain. Smith soon develops strange psychic abilities and keeps the alien as a prisoner in his lab, where he abducts other humans and performs bizarre experiments on them. One of the captives joins forces with the imprisoned alien captain to overthrow the crazed archeologist by summoning help from outer space

A scientist, Igor Benedict, finds a glowing violaceous asteroid. He extracts a serum from the rock, and will do anything to uncover its true powers.

Microbes are brought back to earth via a space probe from Venus. A scientist is using them in experiments on aging, but dies before the work is finished. His assistant approaches an aging actress who is being passed by for the lead roles, and she injects the serum hoping to become young again. When the actress is still passed up for the plum roles, the alien bacterium transforms her into a hideous bug-like alien resulting in a predictable attrition problem amongst her detractors.