
Slither
From the depths of the endless space, a flaming meteorite crashes into the dark woods of the sleepy town of Wheelsy, South Carolina. As the scorched rock reveals its silent content--a baneful parasitic organism--a subtle alien invasion commences, and the war's unlucky first victim is the town's local businessman, Grant. Little by little, as an internal change transforms Grant into an utterly hideous monstrosity, his wife, Starla, starts to feel that something's been eating at him the last few days. Now, before the unstoppable extraterrestrial attack, no one is safe, and to make matters worse, Grant's transformation is far from over yet. Who can stop the slithering army from outer space?
The film struggled financially against its respectable budget of $15.0M, earning $12.8M globally (-14% loss).
2 wins & 5 nominations
Plot Structure
Story beats plotted across runtime


Narrative Arc
Emotional journey through the story's key moments
Story Circle
Blueprint 15-beat structure
Arcplot Score Breakdown
Weighted: Precision (70%) + Arc (15%) + Theme (15%)
Slither (2006) exhibits meticulously timed plot construction, characteristic of James Gunn's storytelling approach. This structural analysis examines how the film's 13-point plot structure maps to proven narrative frameworks across 1 hour and 35 minutes. With an Arcplot score of 7.2, the film balances conventional beats with creative variation.
Structural Analysis
The Status Quo at 1 minutes (1% through the runtime) establishes Peaceful small town of Wheelsy, South Carolina. Bill Pardy is the local sheriff still carrying a torch for his high school sweetheart Starla, who married wealthy Grant Grant. The town prepares for the annual Deer Cheer festival.. Significantly, this early placement immediately immerses viewers in the story world.
The inciting incident occurs at 12 minutes when Grant is infected by an alien parasite in the woods. A meteorite releases a slug-like creature that penetrates his chest, beginning his grotesque transformation into something inhuman.. At 13% through the film, this Disruption is delayed, allowing extended setup of the story world. This beat shifts the emotional landscape, launching the protagonist into the central conflict.
The First Threshold at 24 minutes marks the transition into Act II, occurring at 25% of the runtime. This illustrates the protagonist's commitment to Bill discovers Brenda's hideously bloated body in Grant's barn, filled with alien larvae. The horror is undeniable now—something truly alien and dangerous has invaded Wheelsy. Bill commits to stopping whatever Grant has become., moving from reaction to action.
At 48 minutes, the Midpoint arrives at 50% of the runtime—precisely centered, creating perfect narrative symmetry. The analysis reveals that this crucial beat Grant, now a massive tentacled abomination merged with his house, captures Starla. The heroes realize the alien entity's plan: Grant wants to merge with Starla, and the hive mind is expanding rapidly. The stakes escalate from survival to saving humanity., fundamentally raising what's at risk. The emotional intensity shifts, dividing the narrative into clear before-and-after phases.
The Collapse moment at 71 minutes (75% through) represents the emotional nadir. Here, The survivors are cornered and overwhelmed. Most of Bill's allies are killed or infected. Bill and Starla are separated. Grant-thing has consumed most of the town, becoming a building-sized monstrosity. All seems lost as Bill faces the creature alone., reveals the protagonist at their lowest point. This beat's placement in the final quarter sets up the climactic reversal.
The Synthesis at 76 minutes initiates the final act resolution at 80% of the runtime. Bill executes his plan, using propane tanks and Grant's emotional attachment to Starla as weapons. He engages the creature directly, firing into its core. The Grant-thing explodes spectacularly, freeing Starla and destroying the alien presence., demonstrating the transformation achieved throughout the journey.
Emotional Journey
Slither's emotional architecture traces a deliberate progression across 13 carefully calibrated beats.
Narrative Framework
This structural analysis employs a 15-point narrative structure framework that maps key story moments. By mapping Slither against these established plot points, we can identify how James Gunn utilizes or subverts traditional narrative conventions. The plot point approach reveals not only adherence to structural principles but also creative choices that distinguish Slither within the comedy genre.
James Gunn's Structural Approach
Among the 4 James Gunn films analyzed on Arcplot, the average structural score is 6.9, demonstrating varied approaches to story architecture. Slither represents one of the director's most structurally precise works. For comparative analysis, explore the complete James Gunn filmography.
Comparative Analysis
Additional comedy films include The Ministry of Ungentlemanly Warfare, The Bad Guys and Lake Placid. For more James Gunn analyses, see Guardians of the Galaxy Vol. 3, Guardians of the Galaxy Vol. 2 and The Suicide Squad.
Plot Points by Act
Act I
SetupStatus Quo
Peaceful small town of Wheelsy, South Carolina. Bill Pardy is the local sheriff still carrying a torch for his high school sweetheart Starla, who married wealthy Grant Grant. The town prepares for the annual Deer Cheer festival.
Theme
At the Deer Cheer festival, a conversation hints at the theme of transformation and what we're willing to sacrifice for those we love, as characters discuss marriages and relationships that change people.
Worldbuilding
Introduction to Wheelsy's quirky residents, the strained marriage between Grant and Starla, Bill's unrequited feelings, and the small-town dynamics. Grant feels inadequate and seeks validation, leading him to the woods with another woman.
Disruption
Grant is infected by an alien parasite in the woods. A meteorite releases a slug-like creature that penetrates his chest, beginning his grotesque transformation into something inhuman.
Resistance
Grant's behavior becomes increasingly bizarre and violent. He hides his infection, kills animals, and begins transforming. Starla grows suspicious. Bill investigates strange occurrences around town. The parasite's influence spreads as Grant abducts Brenda to serve as a host.
Act II
ConfrontationFirst Threshold
Bill discovers Brenda's hideously bloated body in Grant's barn, filled with alien larvae. The horror is undeniable now—something truly alien and dangerous has invaded Wheelsy. Bill commits to stopping whatever Grant has become.
Mirror World
Bill and Starla's relationship deepens as they face the crisis together. Their connection represents true partnership and sacrifice, contrasting with Grant's possessive, consuming love that has literally turned him into a monster.
Premise
Full-on alien invasion horror-comedy. Brenda explodes, releasing thousands of parasitic slugs. The creatures infect townspeople, creating a hive mind. Bill, Starla, and survivors fight the growing zombie-like horde while tracking the increasingly monstrous Grant.
Midpoint
Grant, now a massive tentacled abomination merged with his house, captures Starla. The heroes realize the alien entity's plan: Grant wants to merge with Starla, and the hive mind is expanding rapidly. The stakes escalate from survival to saving humanity.
Opposition
The infected townspeople hunt Bill and the survivors. Grant's mutation accelerates into a massive biomass controlling the hive. The group is systematically picked off. They learn the alien's weakness but struggle to exploit it as their numbers dwindle.
Collapse
The survivors are cornered and overwhelmed. Most of Bill's allies are killed or infected. Bill and Starla are separated. Grant-thing has consumed most of the town, becoming a building-sized monstrosity. All seems lost as Bill faces the creature alone.
Crisis
Bill confronts his fear and inadequacy. Starla is absorbed into Grant's biomass. Bill must decide whether to save her or destroy the creature. He processes the horror of what's happened to his town and finds resolve.
Act III
ResolutionSynthesis
Bill executes his plan, using propane tanks and Grant's emotional attachment to Starla as weapons. He engages the creature directly, firing into its core. The Grant-thing explodes spectacularly, freeing Starla and destroying the alien presence.





