TerrorVision

On the alien planet Pluton, a garbage disposal converts the monstrous Hungry Beast into energy and beams it into space. This event establishes the creature's origin and sets up its eventual Earth arrival. The description confines the action to the alien world and space.

Back on Earth, the Putterman family is installing or using a satellite TV setup. Reception starts off poor, but a bolt of alien energy strikes the dish and the signal suddenly improves. The strange interference links the family to the intruding Beast.

Sherman Putterman and his ex-military, survivalist grandfather head out to enjoy a night of horror films hosted by Medusa. The event frames the human world as a backdrop for the ensuing extraterrestrial disturbance. Their outing contrasts with the family’s at-home plans.

Meanwhile, Sherman's parents go out to meet swingers and his sister Suzy goes out with her rocker boyfriend O.D. The household begins to fragment as each member pursues their own plans for the night. The stage is set for the Beast to make its move.

The Hungry Beast materializes out of the television and attacks the house, first devouring Sherman’s grandfather. This shocking first contact demonstrates the Beast's reach through the family's electronics. The threat now becomes literal and deadly inside the home.

Sherman’s parents return home with swingers Cherry and Spiro. To safeguard their evening, Sherman is locked in the fallout shelter, cutting him off from the unfolding chaos outside the shelter. The family dynamic is stressed as the Beast grows closer.

Sherman attempts to call the police, but they treat it as a prank. He also reaches out to Medusa, who dismisses him as psychotic. The authorities and media are not ready to recognize the extraterrestrial threat.

The Beast travels through the television into the house's Pleasure Dome, eats Cherry, and imitates her to lure Spiro. The monster's ability to mimic human forms deepens the danger and confuses the humans. The household's normal environment becomes a trap.

Sherman’s parents discover the remains of the swingers, which leads to their own deaths at the Beast's hands. The family loses two more members to the intruding creature, heightening the sense of peril in the home.

Sherman uses plastic explosive to break out of the bunker as O.D. and Suzy arrive. They confront the Beast directly for the first time since the initial attack and begin to understand its behavior. The reunion marks a turning point in their strategy against the intruder.

The siblings discover they can subdue the Beast with food and television, and they teach it a few words like TV, music, and their names. This odd approach provides a glimmer of control over the creature and reframes it as a teachable, albeit dangerous, presence.

The alien captor Pluthar appears on the television to warn humans to destroy their TV equipment to stop the Beast from spreading. O.D. provokes the monster in a misguided attempt to calm it, and the Beast consumes him in retaliation. The stakes escalate as the alien voice tries to intervene through media.

Medusa arrives and kills Pluthar, mistakenly believing he is the Beast. The actual Beast then arrives in full force, and with a powerful gust of air, sucks the group into its mouth, signaling an ominous, mythical end to the immediate human threat.

The following morning, Medusa's chauffeur is awakened by a crude imitation of his employer hiding in the back seat of his car, demanding to be taken to the TV station. The farce suggests the Monster's influence may persist beyond the house and into the wider world of media.