Karen catches her husband, Max, with his neighbor, Rita, in bed. Angered, Karen leaves the house with a bottle of alcohol in her hand. While outside she discovers a fragment of a meteorite that crashed on Earth. As she picks it up, her body is taken over by an alien life form from another planet. The alien, now inhabiting the body of Karen, works to prevent the secret development of space exploration satellites. Carla, Max's colleague, and Rita are also being taken over by two more alien life forms from other meteorite fragments. One of the aliens, inhabiting the body of Carla, is intrigued by Tom, who is also planning to steal the satellite plans.