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Plot summary

The Keyhole (1933) Plot Summary & Timeline

The Keyhole (1933) movie poster

The Keyhole is a 1933 romance and comedy film directed by Michael Curtiz and William Worthington, running 1 hour 9 minutes. This page retells the whole story in 312 words (about 1 minute to read) and covers 13 key events in order, 6 characters, where and when it is set and 3 themes. Looking for the cast, ratings and where to stream it? See the movie page for The Keyhole.

to read the plot summary
1 min
key events in the timeline
13
characters profiled
6
themes explained
3
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The Keyhole (1933) movie poster
Released
Runtime
1h 9m
Genres
Romance, Comedy, Drama
Original language
English
No spoilers

What Is The Keyhole About?

The premise of The Keyhole in 297 words, with nothing given away. The full story follows below.

In the shadowy world of private investigation, where truth is a commodity sold to the highest bidder, Neil Davis has built his reputation on exposing the secrets others would prefer to keep hidden. A hard-nosed professional who makes his living taking on divorce cases, he operates with clinical detachment, approaching each assignment as a puzzle to be solved rather than a life to be considered. His work for jealous husbands—digging up scandal, documenting indiscretions, providing the evidence needed to tip legal battles in his clients’ favor—has made him both successful and deeply cynical about the nature of love and fidelity.

When a new client approaches him with another case, Davis accepts without hesitation. He has been hired to investigate a woman, to follow her movements, and ultimately to frame her in ways that will ruin her standing. The assignment seems straightforward enough—find the dirt, deliver the goods, collect his fee. But as he begins his surveillance, something unexpected happens. The woman he is meant to destroy proves to be nothing like the careless figure his client has implied, and Davis finds his professional objectivity beginning to waver under the weight of genuine curiosity and unexpected rapport.

What begins as routine work soon transforms into something far more complicated. As Davis spends time in the presence of his subject, real feelings develop where cold calculation once lived, and he discovers that the truth he has been hired to manufacture is far more elusive than he anticipated. The lines between duty and desire begin to blur, and for the first time in his career, this investigator who prides himself on getting results faces an impossible dilemma: complete the job he was paid to do, or allow his heart to complicate a mission that was never supposed to become personal.

Full plot

What Happens in The Keyhole?

The complete story of The Keyhole, from the first scene to the last, in 312 words (about 1 minute). Spoilers throughout.

Spoilers ahead

Anne Brooks, [Kay Francis], wife of wealthy businessman Schuyler Brooks, is being blackmailed by her former husband Maurice Le Brun, who never finalized their divorce and lied to her about it. Acting on advice from Brooks’ sister Portia DeWitt Brooks, [Helen Ware], Anne books a cruise ship passage to Havana, Cuba, to lure Le Brun out of the United States so that he can be blocked from re-entering.

Suspicious of her behavior, Brooks hires private detective Neil Davis, [George Brent], to follow her and report on whether she is having an affair, but tells him that she is merely a young woman that he’s interested in. Davis begins his assignment while the ship sails toward the Caribbean, and as he monitors Anne, he finds himself drawn into her situation rather than simply reporting on her actions.

Anne leaks to Le Brun the details of her trip, and he boards the ship as well. Davis makes contact with her and sends reports to Brooks that she is not having an affair, but he also begins to develop a genuine rapport with her, blurring the lines between professional duty and personal interest.

Back in New York, Brooks learns about the blackmail and boards a plane to Cuba to apologize to Anne for his initial suspicions. Meanwhile, Anne reveals to Davis that she is married to Brooks and that she is being blackmailed, and he reveals that he is the private detective hired by Brooks to follow her.

Le Brun arrives at Anne’s hotel room for his payoff. To save Anne’s marriage, Davis persuades him to leave via the balcony so that Brooks won’t find him in a compromising position with her, but just as Brooks comes into the room, Anne kisses Davis, telling Brooks that their marriage is over. Le Brun falls from the balcony to his death, ending any further threat of blackmail.

Timeline

The Keyhole Timeline: Every Key Event in Order

13 key events in the order they happen, from “Anne is blackmailed by her ex-husband” to “Blackmail ends; future uncertain”. 13 events name a place, across 9 locations.

  1. 1

    Anne is blackmailed by her ex-husband

    In New York, Anne Brooks learns that her ex-husband Maurice Le Brun, who never finalized their divorce, is blackmailing her. The threat jeopardizes her marriage and reputation. On her sister's advice, she sets in motion a plan to lure Le Brun out of the United States.

    When:Before departure Where:New York

  2. 2

    Sister proposes the Havana ruse

    Brooks's sister suggests using a staged Havana trip to draw Le Brun away. The aim is to prevent his re-entry and end the blackmail. Anne agrees to try the plan.

    When:Before departure Where:New York

  3. 3

    Anne books a cruise to Havana

    Anne books a cruise passage to Havana to lure Le Brun out of the country and end his leverage. The voyage is designed to remove him from the United States. She keeps the plan secret while presenting a different story to Brooks.

    When:Pre-departure Where:New York

  4. 4

    Brooks hires a private detective

    Schuyler Brooks hires private detective Neil Davis to follow Anne and report whether she is having an affair. He tells Davis that she is merely a young woman he’s interested in, not a suspected paramour.

    When:Pre-departure Where:Brooks's home, New York

  5. 5

    Davis begins following Anne

    Davis starts tailing Anne and sending reports to Brooks about her behavior. He remains skeptical of an affair but continues the surveillance to protect Brooks's investment in the marriage.

    When:Pre-departure / early voyage Where:Around Anne's activities, New York

  6. 6

    Davis and Anne form a developing relationship

    Davis's reports conclude she isn't having an affair, but he begins to fall for Anne, creating a dangerous conflict of interest. Their interactions intensify as the voyage progresses aboard the ship.

    When:During voyage Where:On the cruise ship

  7. 7

    Le Brun boards the ship

    Le Brun boards the cruise after learning of Anne's Havana plan, hoping to collect the payoff and maintain his leverage. His arrival increases tension among the ship's passengers and the undercover scheme.

    When:During voyage Where:Onboard the cruise ship

  8. 8

    Davis reveals his true role

    Onboard, Anne reveals to Davis that she is married to Brooks and is being blackmailed. Davis confirms he is the private detective hired by Brooks to shadow her, deepening the moral and romantic tension.

    When:During voyage Where:Onboard the ship

  9. 9

    Brooks travels to Cuba to apologize

    Back in New York, Brooks learns of the blackmail and departs on a plane to Cuba to apologize to Anne and salvage their marriage. The trip marks a direct escalation of the scheme and sets the stage for the payoff.

    When:After discovery Where:New York to Cuba

  10. 10

    Le Brun arrives for payoff in Havana

    Le Brun reaches Anne's hotel in Havana to collect the payoff. The plan hinges on his presence not triggering an immediate re-entry issue for Anne or Brooks.

    When:Upon arrival Where:Havana, Cuba

Show the other 3 events of The Keyhole
  1. 11

    Davis convinces Le Brun to leave by balcony

    To avoid Brooks discovering him with Anne, Davis persuades Le Brun to depart through the balcony. The maneuver buys time and postpones the confrontation.

    When:Moment of payoff Where:Hotel room, Havana

  2. 12

    Anne betrays Brooks as Le Brun dies

    Just as Brooks enters, Anne kisses Davis and tells him their marriage is over. Le Brun then falls from the balcony to his death, ending the blackmail threat.

    When:Moment of payoff Where:Hotel room, Havana

  3. 13

    Blackmail ends; future uncertain

    With Le Brun's death, the blackmail threat is eliminated. Anne's marriage to Brooks is over, and Davis's complicating involvement leaves the future uncertain for all involved.

    When:Immediate aftermath Where:Havana, Cuba

Characters

Who Are the Main Characters in The Keyhole?

6 characters, among them Anne Vallee Brooks (Kay Francis), Schuyler Brooks (Henry Kolker) and Neil Davis (George Brent): who each one is and the part they play in the story. Every profile links to the actor’s page.

  • AV

    Anne Vallee Brooks (Kay Francis)

    Played by Kay Francis

    Anne is a wealthy wife entangled in a blackmail scheme. To protect her marriage, she navigates suspicion and plans to lure Le Brun out of the United States during a Havana-bound voyage. She reveals to the detective that she is married and the betrayal behind the blackmail, showing a composed, calculating side under pressure. Her actions drive the plot and raise questions about motive, loyalty, and desperation.

    • 💍 Romance
    • 🕵️‍♀️ Mystery
    • 🛡️ Secrets
  • SB

    Schuyler Brooks (Henry Kolker)

    Played by Henry Kolker

    Schuyler Brooks is a wealthy businessman who grows suspicious of his wife. He hires a private detective to monitor her, hoping to block the blackmail threat and protect his marriage. He travels to Cuba to apologize when the truth emerges, showing a controlling yet vulnerable side. His decisions set the plan in motion and frame the stakes of marital loyalty.

    • 💼 Wealth
    • 🕊️ Suspense
    • 🗣️ Family
  • George Brent as Neil Davis (George Brent) in The Keyhole

    Neil Davis (George Brent)

    Played by George Brent

    Neil Davis is a private detective hired to shadow Anne. He reports back on her behavior but gradually becomes involved emotionally, developing a romance with Anne. He helps navigate the crisis and persuades Le Brun to leave, complicating his professional duties with personal loyalty.

    • 🕵️ Detective
    • ❤️ Romance
    • 🧭 Loyalty
  • ML

    Maurice Le Brun (Monroe Owsley)

    Played by Monroe Owsley

    Maurice Le Brun is Anne's former husband who never finalized their divorce and attempts to blackmail her. He boards the Havana-bound voyage to collect payment, but ultimately dies by falling from a balcony, ending the threat he posed. His presence catalyzes the conflict and resolution of the plot.

    • 🗝️ Blackmail
    • ⚖️ Scandal
    • 🕶️ Threat
  • PD

    Portia DeWitt Brooks (Helen Ware)

    Played by Helen Ware

    Portia is Schuyler Brooks's sister who counsels Anne and pushes the plan that brings the couple to Cuba. She represents a voice of pragmatic sisterly interference, instrumental in steering the plot toward a controlled outcome. Her presence adds a familial layer to the web of secrets.

    • 👩‍👧 Family
    • 🧭 Guidance
    • 🫖 Social Circle
  • D(

    Dot (Glenda Farrell)

    Played by Glenda Farrell

    Dot is a social figure in Brooks's circle, adding to the glamorous, shipboard atmosphere. Her role is lighter but contributes to the social dynamics that surround the main characters. She helps illustrate the world of prestige and performance in which the drama unfolds.

    • 🎭 Social Scene
    • 🥂 Partygoer
    • 🧩 Misc
Setting

Where and When Is The Keyhole Set?

The Keyhole is set in New York, Havana and Cuba (Early 1930s). Here is why the time and place matter to the story.

When

Early 1930s

The action unfolds in the early 1930s, a period of glamorous city life and transatlantic travel. The plot uses contemporary travel and private detectives to create tension and pace. The social environment reflects upper-class dependence on appearances and control during this era.

Where

New York, Havana, Cuba

The movie starts in New York and follows Anne Brooks onto a Havana-bound cruise, edging into a luxury Havana hotel setting. The journey to Cuba becomes the backdrop for secret plots, with shipboard spaces and a Cuban hotel intertwining the drama. The exotic Havana locale amplifies the stakes as characters maneuver to protect or destroy reputations.

  • 🗽 New York
  • 🚢 Cruise
  • 🏝️ Havana
Themes

What Are the Themes of The Keyhole?

3 ideas the story keeps returning to, among them Blackmail, Romance and Voyage & Escape.

  1. 01

    Blackmail

    A blackmailer leverages secrets to pressure Anne Brooks, driving the central conflict. The fear of exposure fuels the plot and motivates the characters' choices. The resolution hinges on how truth and coercion influence relationships and loyalty.

  2. 02

    Romance

    A romance develops between Anne and the private detective, complicating loyalties and expectations. Romantic attraction collides with duty and the shadow of the blackmail scheme. The relationship adds moral ambiguity as characters weigh honesty against protection of a marriage.

  3. 03

    Voyage & Escape

    The Havana-bound cruise serves as a microcosm where appearances mask motives and alliances shift. Travel and travel settings create dramatic opportunities for manipulation and revelation. The ship and Havana hotel scenes function as stages for confrontation and final reckoning.

Tone & mood

What Kind of Film Is The Keyhole?

Tense in tone, with steady pacing and a moderate story, going by the plot summary.

Tone
Tense
Pacing
Steady
Story
Moderate
Intensity
Medium
Ending
Bittersweet

A tense and glamorous pre-code melodrama that combines romantic entanglements with a suspenseful plot of blackmail and deception, set against the luxurious backdrop of a cruise ship.

  • tense
  • romantic
  • glamorous
  • suspenseful
  • deceptive
  • dramatic
  • dysfunctional marriage
  • blackmail
  • private investigation
  • deception

Content notes: fatal accident.

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FAQ

The Keyhole Plot Questions

5 quick answers about The Keyhole, taken from the plot summary, character guide and setting on this page and the film’s credits.

What is The Keyhole about?

In the shadowy world of private investigation, where truth is a commodity sold to the highest bidder, Neil Davis has built his reputation on exposing the secrets others would prefer to keep hidden.

Read the full plot summary

When and where does The Keyhole take place?

The Keyhole is set in New York, Havana and Cuba (Early 1930s). The action unfolds in the early 1930s, a period of glamorous city life and transatlantic travel. The plot uses contemporary travel and private detectives to create tension and pace.

The setting explained

Who are the main characters in The Keyhole?

The story follows Anne Vallee Brooks (Kay Francis) (played by Kay Francis), Schuyler Brooks (Henry Kolker) (played by Henry Kolker), Neil Davis (George Brent) (played by George Brent) and Maurice Le Brun (Monroe Owsley) (played by Monroe Owsley); the character guide covers 6 characters in all.

All the characters

What are the main themes of The Keyhole?

The summary picks out 3 themes: Blackmail, Romance and Voyage & Escape.

The themes explained

Who directed The Keyhole?

The Keyhole (1933) was directed by Michael Curtiz and William Worthington and runs 1 hour 9 minutes.

Michael Curtiz’s films

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