The Lawnmower Man is a 1992 science fiction horror film directed by Brett Leonard, written by Leonard and Gimel Everett, and starring Jeff Fahey as Jobe Smith, an intellectually disabled gardener, and Pierce Brosnan as Dr. Lawrence "Larry" Angelo, a scientist who decides to experiment on him in an effort to give him greater intelligence. The experiments give Jobe superhuman abilities, but also increase his aggression, turning him into a man obsessed with evolving into a digital being.

Plot

Dr. Lawrence Angelo works for Virtual Space Industries and runs experiments using psychoactive drugs and virtual reality to enhance cognitive performance, using chimpanzees as test subjects, in an experiment labeled "Project 5". Angelo has benevolent aims, but VSI is funded by "The Shop", a clandestine group hoping to find military applications for Angelo's research. One of the chimpanzees, "Rosco," gifted with new intelligence, warfare training, and increased aggression, escapes, and after being hunted, is executed by the laboratory's security forces. Angelo consequently decides to recruit intellectually disabled gardener Jobe Smith as a test subject, telling the man he will become smarter. Angelo redesigns the intelligence-boosting treatments to remove the "aggression factors" used in the chimpanzee experiments. Not only is Jobe's intelligence enhanced, but he also develops psychokinesis and telepathy. He continues training at the lab until an accident forces Angelo to abort the experiment.