Richard Bellero, a dedicated scientist, works on experiments involving laser beams sent into outer space. His father, Richard Bellero Sr., believes his son isn't strong enough to take over the Bellero business empire. In the meantime, Richard's wife Judith has more than enough ambition for the two of them. Richard, through a freak accident, reels in a being from another dimension with his laser experiment. The being has a small device that can project a shield that no force can penetrate. The alien at first wants to learn all that he can about Earth, and Richard cooperates. Judith, however, sees the alien and the shield-projecting device as a means to power. While Richard is away, Judith first tricks the alien into deactivating his shield device then shoots the alien to prevent him from departing Earth. She removes the handheld device while failing to notice it was connected to a vein in the alien -- whose bodily fluid is the key to operating the device. Thus begins Judith's downfall.
—Bill Koenig