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The Spider Woman (1943) movie poster

Plot Summary

The Spider Woman (1943) Plot Summary Explained

Release, runtime and language
1943 · 63 mins · English
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Directed by
Roy William Neill
Starring
Nigel Bruce, Basil Rathbone, George Kirby, Alec Craig, Mary Gordon, Gale Sondergaard

A thrilling mystery keeps viewers on edge as Sherlock Holmes probes a string of bizarre “pajama suicides.” He discovers the mastermind is a female adversary, as cunning as Moriarty and as poisonous as a spider. The plot weaves elements from “The Sign of Four” and the short stories “The Dying Detective,” “The Final Problem,” “The Speckled Band,” and “The Adventure of the Devil’s Foot.”

On this page (7)
  1. 1 Where to watch
  2. 2 What happens: full plot
  3. 3 Plot questions answered
  4. 4 Movie threads
  5. 5 Movies like The Spider Woman
  6. 6 Categories
  7. 7 Every angle
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Full plot summary · contains spoilers

What Happens in The Spider Woman: Full Plot Summary

The whole story of The Spider Woman (1943) 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.

Consulting detective Holmes fakes his own death in Scotland to probe a string of bizarre apparent suicides, convinced they are part of an elaborate plot by a "female Moriarty." Returning to his assistant Watson in secret, he notes that all the victims are wealthy gamblers and begins tailing London's gaming clubs, where wealth and risk mingle in the shadows.

Disguised as Rajni Singh, a distinguished Indian officer, he moves through the clubs with careful patience, watching how a formidable mastermind named Adrea Spedding targets vulnerable men, persuading them to pawn their life insurance policies before ending their lives. Holmes sets himself up as her next would-be mark, uncovering that she wields a deadly weapon: the spider Lycosa carnivora, whose venom inflicts such unbearable pain that it drives victims to suicide. A peculiar clue sits nearby as well—a tiny footprint left in the dust, hinting at something or someone beyond ordinary human reach.

To unlock the mystery, Holmes and [Watson] must track down the source of the arachnids. They visit the eminent arachnologist Matthew Ordway, a man who might have supplied the venomous creatures. Holmes quickly realizes that the man he speaks to is an impostor, yet the faker escapes, leaving behind the corpse of the real Ordway and his journals. The journals hint at a Central African entity immune to the spider venom, a revelation that deepens the mystery and points toward a hidden force behind the scheme. The journals also reveal a model skeleton of a child, a clue that shakes Holmes’ understanding of the danger at play.

The investigation leads them to a bustling fairground, where Holmes lets himself fall into Spedding’s trap. Bound and gagged, he is strapped behind a moving target in a shooting gallery while Lestrade and Watson take aim with a .22 rifle. In a deft escape, Holmes breaks free, and the police descend on the scene, arresting Spedding, her gang, and the pygmy associate who has been aiding the operation.

In a quiet moment of mutual respect, Holmes chooses mercy over humiliation, telling Lestrade to spare Spedding the indignity of handcuffs, and remarking that "she'll go quietly." Spedding, recognizing the measure of Holmes’s intellect, smiles gratefully as she is led away.

> she'll go quietly.

Last updated: October 09, 2025 at 12:41

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Plot questions answered

The Spider Woman Plot Explained: Your Questions Answered

The questions people ask most about The Spider Woman (1943): 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 Holmes fake his own death in Scotland?

Holmes stages his death in Scotland to throw off his pursuers and investigate the string of bizarre suicides undetected. He knows a dangerous mastermind is behind the killings and needs to work in secret to gather evidence without tipping off the killer. This ruse allows him to return to London undercover and infiltrate the criminal operation.

  • holmes fake death
  • scotland
  • undercover investigation
  • female moriarty
Q2

Who is Adrea Spedding and why is she called the 'female Moriarty'?

Adrea Spedding is the brilliant criminal mastermind behind the orchestrated suicides. Holmes calls her the 'female Moriarty' because she matches his archenemy in cunning, ambition, and danger. She lures wealthy gamblers into pawning their life insurance policies, then kills them using venomous spiders to make the deaths appear as suicides.

  • adrea spedding
  • female moriarty
  • mastermind
  • spider woman
Q3

How does the spider venom kill victims in The Spider Woman?

Spedding uses the venomous spider Lycosa carnivora to inflict unbearable pain on her victims, driving them to suicide. The venom causes such excruciating suffering that victims would rather end their own lives than endure the torment. This method makes the deaths look like voluntary suicides rather than murders.

  • lycosa carnivora
  • spider venom
  • suicide method
  • venomous spider
Q4

What is the significance of the child's footprint found at the crime scenes?

The tiny footprint initially seems to indicate a child accomplice, but Holmes discovers it actually belongs to a pygmy working with Spedding's gang. The model skeleton of a child in Ordway's laboratory has skull and chest measurements that prove it is not human but a pygmy disguised, explaining how the criminal operated undetected.

  • child footprint
  • pygmy
  • crime scene clue
  • disguise
Q5

Why does Holmes let Spedding target him as her next victim?

Holmes deliberately becomes Spedding's next mark to gather concrete evidence against her operation. By going along with her scheme, he observes how she lures victims and can collect clues about her partners and methods. This risky undercover position allows him to map the entire criminal network before springing his trap.

  • holmes bait
  • undercover operation
  • evidence gathering
  • gaming clubs
Q6

What happened to arachnologist Ordway in The Spider Woman?

The man Holmes and Watson initially meet is an impostor posing as arachnologist Matthew Ordway. The real Ordway is found dead in his laboratory, and the impostor escapes, leaving behind Ordway's journals. These journals reveal crucial information about the venom source and a mysterious Central African entity immune to the spider venom.

  • matthew ordway
  • arachnologist
  • impostor
  • dead body
Q7

What is the connection to Central Africa mentioned in Ordway's journals?

Ordway's journals allude to something from Central Africa that is immune to the spider venom, which deepens the mystery. This revelation points toward a hidden force behind Spedding's scheme and suggests the conspiracy extends beyond London to distant, exotic influences, connecting the African pygmy accomplice to the larger plot.

  • central africa
  • journals
  • venom immunity
  • conspiracy
Q9

Why does Holmes tell Lestrade to spare Spedding handcuffs?

Holmes shows unusual mercy toward Spedding, instructing Lestrade to spare her the indignity of handcuffs, saying "she'll go quietly." This moment reflects Holmes's mutual respect for her intellect and cunning, even as a defeated adversary. Spedding smiles gratefully in recognition of this gesture before being led away.

  • holmes mercy
  • spedding handcuffs
  • respect
  • final scene

Movie threads

More Movies Like The Spider Woman, by Mood & Story

Curated lists built around what makes The Spider Woman tick: the same mood, the same kind of story or the same emotional payoff. Each list explains why these movies belong together.

Intellectual Detective Duels like in The Spider Woman

Stories where a brilliant protagonist is matched by an equally brilliant and dangerous adversary. Discover movies like The Spider Woman where a brilliant detective faces off against a cunning criminal mastermind. This thread features tense mysteries and thrillers built around intellectual rivalry and psychological manipulation, perfect for fans of strategic mind games and formidable villains.

  • cunning
  • methodical
  • intellectual
  • suspenseful
  • strategic
  • respectful rivalry
  • Tone: tense, methodical
  • Pacing: steady, deliberate
Why these movies?

The story pattern: The narrative centers on a brilliant investigator being challenged by an antagonist who is their intellectual equal, if not superior in certain aspects. The plot unfolds as a series of calculated moves and counter-moves, with the hero needing to outthink rather than simply overpower their foe. The climax is often an intellectual victory that reveals the hero's superior deductive reasoning.

Why they belong together: Movies are grouped here based on the central dynamic of a high-IQ cat-and-mouse game. They share a tone of tense, respectful rivalry, a steady pacing that allows for complex plotting, and a focus on intelligence and strategy over brute force or action.

Classic Methodical Mysteries like The Spider Woman

Classic detective stories where the investigation itself builds a palpable sense of suspense. If you liked the investigative pacing of The Spider Woman, explore more movies with a steady, methodical approach to crime-solving. These films feature classic detective work, atmospheric suspense, and a focus on logical deduction, offering a satisfying puzzle-like experience.

  • methodical
  • suspenseful
  • atmospheric
  • investigative
  • puzzle
  • logical
  • Tone: tense, atmospheric
  • Pacing: steady, clue-driven
Why these movies?

The story pattern: The narrative follows a clear, linear investigation structure. The protagonist methodically follows leads, interviews suspects, and analyzes clues, allowing the audience to engage with the mystery. The pacing is steady and deliberate, building tension through the accumulation of details rather than frantic action, often culminating in a drawn-out confrontation or a dramatic reveal of the culprit.

Why they belong together: These movies are grouped by their shared commitment to a classic detective story structure and mood. They feature a steady, investigative pace, a tense and atmospheric tone, and a medium level of complexity that engages the viewer without being overwhelming.

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Categories

Movie Lists Featuring The Spider Woman

The Spider Woman appears in these hand-built movie categories. Each one groups movies by a specific mood, theme or story type, with their plot summaries and endings explained.

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Every angle

The Spider Woman (1943) Explained: Plot, Timeline & Characters

Everything about The Spider Woman 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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