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Lobster Man from Mars (1989) movie poster

Plot Summary

Lobster Man from Mars (1989) Plot Summary Explained

Release, runtime and language
1989 · 84 mins · English
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Directed by
Stanley Sheff
Starring
Tony Curtis, Billy Barty, Deborah Foreman, Anthony Hickox, M.G. Kelly, S.D. Nemeth

A film student tries to sell his low‑budget sci‑fi picture to a cash‑strapped producer needing a tax write‑off. The producer screens the film, where a dying Mars leaks its atmosphere and sends the Lobster Man to Earth to steal the last air. A mad scientist, a brave woman, and an army colonel foil the alien threat, ending in a chaotic climax.

On this page (6)
  1. 1 Where to watch
  2. 2 What happens: full plot
  3. 3 Plot questions answered
  4. 4 Movie threads
  5. 5 Movies like Lobster Man from Mars
  6. 6 Every angle
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Full plot summary · contains spoilers

What Happens in Lobster Man from Mars: Full Plot Summary

The whole story of Lobster Man from Mars (1989) explained, from the opening scene to the final frame: every key event, every twist and what it all adds up to. Read it as a quick recap before the sequel, to check a scene you missed, or to finally understand what really happened.

Stevie Horowitz, a hopeful young filmmaker, eagerly awaits a meeting with J.P. Shelldrake, a big‑name Hollywood producer who is secretly trying to dodge the IRS and millions in back taxes. His sharp, overpaid accountant hatches a cheeky scheme: the expenses of Shelldrake’s next release can be written off only if the film is a box office flop. With the plan in mind, Shelldrake agrees to watch Stevie’s pitch, a project titled Lobster Man from Mars, financed by Stevie’s jailed con man uncle Joey. The setup reads like a satire on studio greed, and the irony isn’t lost on Shelldrake as he eyes a potential windfall.

Inside Shelldrake’s private screening room, the film within the film unfolds with a goofy, sci‑fi twist. The Mars‑based plot centers on a severe air leakage that threatens the red planet. The King of Mars commands the dreaded Lobster Man and his helmeted gorilla aide Mombo to pilot a flying saucer to Earth and steal its air. Once they land, the Lobster Man wastes no time transforming hapless victims into smoking skeletons and chaos follows in a manner that sits between parody and pulp fantasy.

On a lonely road, John and Mary, a young and innocent couple, stumble upon the hiding place of the flying saucer in a dark cave. They try to warn the authorities but are ignored, so they contact Professor Plocostomos for help. The professor devises a plan to lure the Lobster Man to Mr. Throckmorton’s Haunted House, a place ringed by boiling hot springs that seem to promise a dramatic showdown.

The trap hinges on a simple, hazardous idea: push the Lobster Man into the hot water and he will be boiled to death. The plan sparks into action, but it’s interrupted by armed forces, and the house is shelled and destroyed. The Lobster Man escapes with [Mary], who manages to flee, but the chase continues. [Professor Plocostomos] uses the overheated coolant from his vehicle to drench Mombo, sealing the gorilla’s foamy demise. The pursuit runs through rugged terrain to Yellowstone National Park, where the Lobster Man is lured into the Old Faithful Geyser and meets a steamy, definitive end.

Back in the screening room, Shelldrake reacts with a mix of disbelief and glee. The movie’s apparent stupidity seems to have an odd, undeniable charm, and Shelldrake ends up buying the production on the spot. Once released, the film defies expectations and becomes a huge, profitable runaway, turning Shelldrake’s tax troubles into an unlikely prison sentence while steering Stevie toward the spotlight as the studio’s new star talent.

The quirky cast and offbeat flavors keep the satire lively, including The Queen of Mars, Vicki the Camper, Zip, Lou, and Big Dick Strange among others, each contributing to the film’s unusual energy. In a narrow note within the production lore, Bobby Pickett’s dual roles as both The King of Mars and The Astrologer underscore the tongue‑in‑cheek crediting that threads through the movie’s meta‑cinema vibe. The result is a long, strange ride that stays faithful to its outlandish premise while delivering a surprisingly sturdy, entertaining story.

Last updated: October 09, 2025 at 14:32

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Plot questions answered

Lobster Man from Mars Plot Explained: Your Questions Answered

The questions people ask most about Lobster Man from Mars (1989): what happens in the confusing scenes, why the characters do what they do, the twists, hidden details and what the ending means. Each answer contains spoilers.

Q1

Why does J.P. Shelldrake agree to produce Stevie's film?

Shelldrake agrees because his accountant proposes a scheme where the expenses of a film can be written off as a tax loss only if the movie flops at the box office. Since Shelldrake is desperate to dodge millions in IRS back taxes, he sees Stevie's low-budget sci-fi picture as the perfect candidate to fail and provide the tax write-off he needs.

Foreshadowing: Earlier, Shelldrake's accountant explains that the film's expenses can only be written off if it's a box office flop, establishing the greedy motivation behind Shelldrake's interest.

  • tax write-off
  • shelldrake
  • producer
  • steve horowitz
  • scheme
  • irs
Q2

Why does the Lobster Man come to Earth?

In the film-within-a-film, Mars is suffering from a severe air leakage that threatens to destroy the planet. The King of Mars commands the Lobster Man and his assistant Mombo to travel to Earth in a flying saucer and steal Earth's air to save Mars.

Foreshadowing: The opening of the in-film story establishes Mars's atmospheric crisis, explaining the Lobster Man's mission.

  • lobster man
  • mars
  • earth
  • air theft
  • alien invasion
Q3

How is the Lobster Man defeated?

Professor Plocostomos devises a plan to lure the Lobster Man to Mr. Throckmorton's Haunted House near boiling hot springs, intending to push him into the hot water. When that plan fails due to military interruption, the Lobster Man is eventually tricked into stepping into Old Faithful Geyser at Yellowstone, where he is boiled to death.

Foreshadowing: The initial trap at the haunted house uses the hot springs, establishing that extreme heat can kill the Lobster Man.

  • old faithful
  • yellowstone
  • lobster man death
  • professor plocostomos
  • geyser
Q4

Why does Shelldrake end up in prison?

Shelldrake's tax scheme backfires spectacularly. He purchased Stevie's film expecting it to flop so he could write off the expenses against his tax debt. Instead, the movie becomes a huge box-office hit, making substantial profits. The unexpected success exposes his tax evasion scheme, and Shelldrake is sentenced to prison for his unpaid taxes.

Foreshadowing: The accountant warns that the scheme only works if the film fails, setting up the ironic reversal.

  • tax prison
  • shelldrake
  • box office success
  • ironic ending
  • tax evasion
Q5

Why does the Lobster Man film become successful despite its silly premise?

The film's ridiculous, goofy nature ends up being part of its appeal. Shelldrake initially sees the movie's apparent stupidity as a virtue for his tax scheme, but the quirky, satirical humor and the film's self-aware parody of sci-fi tropes give it an odd charm that audiences embrace, turning it into a profitable hit.

Foreshadowing: During the screening, Shelldrake reacts with disbelief but also recognizes an undeniable charm to the film.

  • box office hit
  • parody
  • sci-fi spoof
  • audience success
Q6

Why are John and Mary ignored when they try to warn authorities?

John and Mary discover the flying saucer hiding in a dark cave and attempt to warn the authorities about the alien threat. However, they are dismissed as hysterical or crazy, so they turn to Professor Plocostomos for help instead.

  • john
  • mary
  • authorities
  • ignored
  • professor plocostomos
Q7

What happens to Stevie Horowitz at the end of the movie?

Stevie's career takes off dramatically. After Shelldrake purchases the production and goes to prison for tax evasion, Stevie becomes the studio's new star talent, taking over as the leading filmmaker at the studio. His dream of breaking into Hollywood comes true.

Foreshadowing: Shelldrake buys the production on the spot, securing Stevie's future as his next big project.

  • steve horowitz
  • success
  • hollywood
  • studio
  • filmmaker
Q8

How does Mombo the gorilla die?

During the chase sequence, Professor Plocostomos uses the overheated coolant from his vehicle to drench Mombo, the Lobster Man's helmeted gorilla aide. The hot coolant causes Mombo's foamy demise, eliminating the Lobster Man's companion.

  • mombo
  • gorilla
  • professor plocostomos
  • coolant
  • death
Q9

How does Mary escape from the Lobster Man?

After the Lobster Man captures Mary during the interrupted trap at the haunted house, she manages to escape from him. A chaotic chase ensues through rugged terrain as she flees from the alien, ultimately leading to the final confrontation at Yellowstone.

  • mary
  • escape
  • lobster man
  • chase
  • john
Q10

What is the tax scheme that motivates Shelldrake to produce a flop?

Shelldrake's accountant hatches a plan where the expenses of his next film release can only be written off as a tax loss if the movie bombs at the box office. With millions in back taxes owed to the IRS, Shelldrake desperately needs a flop to write off his debts, making Stevie's ridiculous sci-fi film seem like the perfect candidate.

Foreshadowing: The scheme is established early in Shelldrake's office scene.

  • tax scheme
  • accountant
  • irs
  • back taxes
  • write-off

Movie threads

More Movies Like Lobster Man from Mars, by Mood & Story

Curated lists built around what makes Lobster Man from Mars tick: the same mood, the same kind of story or the same emotional payoff. Each list explains why these movies belong together.

Goofy Sci-Fi Parodies with Meta Humor like Lobster Man from Mars

Whimsical satires that playfully break the fourth wall and mock genre conventions. If you enjoyed the intentionally bad aliens and satirical Hollywood framing of Lobster Man from Mars, you'll love these movies. This list features similar films that blend sci-fi spoofing with meta-cinema and absurd humor, perfect for fans of playful, self-aware comedies.

  • satirical
  • goofy
  • meta
  • playful
  • intentionally bad
  • absurd
  • Tone: whimsical, satirical, goofy
  • Pacing: fast, energetic
Why these movies?

The story pattern: Stories in this thread often feature a deliberately clichéd plot—like an alien invasion—framed within a larger satirical context. The narrative journey is less about suspense and more about delivering a rapid-fire series of gags, sight gags, and witty critiques of pop culture or filmmaking itself, usually culminating in a chaotic but happy resolution.

Why they belong together: These movies are grouped together because they share a unique blend of genre parody and meta-commentary. They prioritize laughter over logic, using fast-paced, whimsical tones and light emotional weight to create a consistently quirky and offbeat viewing experience focused on satirical fun.

Quirky Cult Comedies with Unusual Humor like Lobster Man from Mars

Lively and unusual films where eccentricity and playful absurdity reign supreme. Fans of the quirky, offbeat, and playful vibe of Lobster Man from Mars will find more to love here. Discover movies with a similar cult comedy feel, featuring unusual plots, goofy characters, and a distinctly lively and satirical energy that defines this unique style of humor.

  • quirky
  • offbeat
  • unusual
  • cult classic
  • eccentric
  • playful
  • Tone: quirky, playful, unusual
  • Pacing: fast, lively
Why these movies?

The story pattern: The narrative pattern here is less about a complex plot and more about presenting a series of eccentric situations and characters. The journey is driven by its oddball charm and playful energy, often involving satirical elements or a general celebration of the weird and unusual, leading to a lighthearted and satisfying conclusion.

Why they belong together: These films are grouped by their shared vibe of quirky, unconventional comedy. They possess a specific, often hard-to-define, quality of being unusually playful and lively, creating a cohesive experience for viewers seeking humor that is clever, strange, and distinctly non-mainstream.

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Every angle

Lobster Man from Mars (1989) Explained: Plot, Timeline & Characters

Everything about Lobster Man from Mars in one place: what happens in the plot summary, the timeline in chronological order, the characters and meaning and a spoiler-free summary. What's After the Movie adds the cast, box office and post-credit scenes.

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