Trog

Dr. Brockton, a renowned anthropologist, learns that a lone male troglodyte survives in the caves of the British countryside. The find promises potential insights into human evolution and a possible missing link. The discovery attracts scientific interest while the local community remains mostly unaware at first.

Brockton extracts the creature and brings him to the surface for observation. The townspeople flee in terror as the experiment comes into daylight, while Brockton steadies herself with a tranquilizer gun and subdues the caveman.

The captured troglodyte is taken to Brockton's laboratory for systematic study. The town grows wary of the project and its potential to redefine civilization, setting the stage for conflict with detractors.

Sam Murdock, a local businessman, decries the project as dangerous and commercially damaging. He challenges the legitimacy of a woman heading a research facility, and municipal courts weigh protecting the creature versus public outcry.

Brockton subjects Trog to a series of surgeries and a hypnotic device designed to unlock language and social behavior. Over time, the caveman shows signs of learning and starting to engage through play and sharing.

Under pressure from opponents, Murdock arranges the creature's release at night. He hopes the disturbance will force officials to abandon the project and discredit Brockton.

Trog goes on a brutal midnight rampage through the town. He first beats Sam Murdock to death, then proceeds to kill a grocer, a butcher, and a citizen in a car, spreading fear among the townspeople.

In the chaos of the rampage, Trog snatches a little girl from a playground and drags her toward his cave. The abduction heightens the urgency for authorities to intervene and understand the creature's behavior.

Dr. Brockton, police, and army personnel gather at the cave's entrance, pleading with the authorities to allow safe retrieval. Brockton argues that she can communicate and avoid further bloodshed if given the chance.

Ignoring the initial orders, Brockton charges into the cave to confront Trog and retrieve the girl. Inside, Trog initially resists but is calmed by Brockton's stern reprimand and concerned plea.

After Brockton's intervention and a tense exchange, Trog relinquishes the girl and allows her to be taken by her rescuers. The pair exit the cave together, ending the immediate danger.

Shortly after the rescue, soldiers ignite explosives and assault the cave. Trog is wounded by gunfire and falls, impaled on a stalagmite, ending the confrontation and the missing-link drama.

With the crisis over, a news reporter questions the doctor about the 'missing link'. Brockton pushes aside the microphone and walks away, choosing silence over sensationalism as she contemplates what the discovery means.