Richard Tarbell, the sheriff of a small island town called North Port, wakes up one morning to find several cockroaches in his house. He goes to the airport to pick up Elizabeth Johnson, the daughter of town mayor Elias Johnson and a former girlfriend of Richard, who is returning from a four-year absence in time for her father's birthday. Strange occurrences happen around the town—the bindings of every book in the local library have been damaged, and several dogs have been reduced to bloody carcasses.

Dr. Morgan Hubbard arrives in town to investigate the dog deaths. She places a trap containing a live cat as bait; a number of cockroaches are lured to the trap, wherein they attack and devour the cat. While Hubbard studies the insects, Elizabeth visits the local diner, owned by Richard's current girlfriend, Lillian. Homer, the local pest control agent, attempts to exterminate some cockroaches inside the establishment.

Hubbard notes that the cockroaches can reproduce asexually, and her hand is wounded by cockroach bites as she studies them. She sprays the insects with rotenone, but is only able to kill them using a dosage also lethal to humans. Elias suggests they evacuate the island, but Hubbard persuades him not to. Meanwhile, Richard shows a number of small objects found on a dog carcass to Homer, who identifies them as Periplaneta droppings. Richard's secretary Millie informs him that Hubbard worked in genetics at MIT, and that she performed illegal experiments.

Elizabeth ventures into a cave and discovers equipment belonging to INTEC, a corporation with whom Elias made a deal to develop the island. After being chased from the cave by flesh-eating cockroaches, she and Richard confront Elias and Hubbard. When Elias demands that Richard cease his investigations, Richard resigns from his position as sheriff. At the diner, an employee named Church is eaten alive by cockroaches. Elsewhere, Homer finds his friend Jake dead, with cockroaches crawling on his corpse. At Richard's house, Richard and Elizabeth find the bathroom toilet swarming with cockroaches. The local librarian, Mrs. Pennington, is attacked in bed by the insects.

Elias calls Mr. Hauser, a representative at INTEC, and demands that they take action against the cockroaches, or else he will reveal information to the national media. Hauser agrees to spray the island with lethal insecticide at 5 a.m. Elias adds that if residents are unable to evacuate, they will turn on the local lighthouse beam; if the beam is on, they are not to spray the island. Hubbard notices that cockroach egg capsules which survived the rotenone have hatched, and are now immune to the chemical.

Richard finds both Millie and Lillian dead. Homer, in an attempt to kill cockroaches, accidentally sets a flammable insecticide aflame, causing his own house to explode. Richard and Homer confront Hubbard, who reveals that INTEC created a species of cockroach designed to eat other cockroaches and then die after one generation; however, the engineered cockroaches did not die after one generation. In order to prevent INTEC from spraying the island and thereby making the eggs located in a nest in the cave immune to the spray, Richard and Homer set out to turn the lighthouse beam on.

Elias and Elizabeth are attacked by cockroaches in Elias's home. Richard, Homer, and Hubbard find a cat-cockroach hybrid that attacks Richard and is crushed by Homer. Here it is revealed that cockroaches after a while genetically mutate into whatever mishmash forms of preys they ate. Elias is killed by the cockroaches and returns as a human-cockroach hybrid, which Elizabeth kills using a shotgun. Elizabeth and Hubbard drive to the cave and find the insects' nest. Richard follows them there, while Homer heads to the lighthouse. In the cave, Hubbard is killed by a queen cockroach-human hybrid. Elizabeth and Richard detonate an explosive inside the cave, incinerating all killer insects lured into the cave and Homer turns on the lighthouse beam, stopping INTEC from spraying the island.

However, before the screen fades to black one cockroach is seen in close-up, indicating that one mutant cockroach survived and the cycle of terror will start over again in time.

• Robert Lansing as Elias Johnson
• Lisa Langlois as Elizabeth Johnson
• Franc Luz as Richard Tarbell
• Terri Treas as Dr. Morgan Hubbard
• Stephen Davies as Homer
• Diana Bellamy as Mrs. Pennington
• Jack Collins as Shakey Jake
• Nancy Morgan as Lillian
• Jeff Winkless as Church
• Steve Tannen as Mr. Perkins
• Heidi Helmer as Jenny

The filmmakers used 2,000 flying cockroaches during filming at Quicksilver Studios in Venice, Los Angeles. When some of the insects escaped into nearby dressing rooms, the American Humane Association were unable to assist them as the organization must be contacted prior to shooting on matters concerning insects.^[1][3] The cockroaches had been provided by World of Animals.^[3]

The pick up truck explosion and the exterminator's house explosion in the movie are both taken from footage from Humanoids from the Deep, a 1980 science fiction film starring Doug McClure and Vic Morrow.^{[citation needed]}

Lead actress, Lisa Langlois afterwards expressed her disdain for the movie poster used for The Nest, which showed a woman in underwear being ravaged by a giant cockroach, and pointed out that her character appeared in no such scene. She complained that the poster made it look like she was being seduced by a giant cockroach. "I think as a woman," she said, "I was feeling really exploited. But now...I can laugh at it."^{[citation needed]}

Critical response edit

The film received a mixed response from film critics.^[1] Candice Russell of the Sun-Sentinel wrote: "Fulfilling the promise of The Hellstrom Chronicle, The Nest is a roach rout. It's no masterpiece, but in the last 40 minutes, fans of the genre get their money's worth."^[4] The Los Angeles Times' Leonard Klady praised Winkless' direction and King's screenplay, noting that the film "hatches its clever plot extremely successfully."^[5] Writing for the Fort Worth Star-Telegram, Michael H. Price gave the film a score of seven out of ten, commending its special effects and calling it an "unusually well-made cheapo shockeroo" that "pumps enough vigor into a tired subgenre [...] to make the old nature-gone-haywire premise seem fresh."^[6]

Ed Bank of The Pittsburgh Press awarded the film one-and-a-half stars, criticizing its storyline as being "too familiar."^[7] A reviewer for the New York Daily News wrote that the film "broke little in the way of new bug-movie ground."^[1]

In 2013, Jon Abrams of Daily Grindhouse thought the film was enjoyable, though not inventive; he wrote, "The Nest is neither the first nor the best horror film about killer cockroaches, and it doesn't rank with the likes of the final segment of Creepshow or Jeannot Szwarc's Bug in terms of 'ew' factor, but it's still an enjoyable little flick even if it doesn't do much to forward the genre."^[8]

The Nest was first released on VHS by MGM/UA Home Video in 1989.^[9] It was released on DVD for the first time by New Concorde Home Entertainment on August 28, 2001, now out of print.^[10] Scream Factory, a subsidiary of Shout! Factory, released the film on Blu-ray and DVD as a combo pack on February 19, 2013.^[11]

• The Nest at IMDb  
• The Nest at Rotten Tomatoes