The Ex-Mrs. Bradford

The Ex-Mrs. Bradford

Year: 1936

Runtime: 82 mins

Language: English

Director: Stephen Roberts

MysteryComedy

A celebrated society sleuth finds herself drawn back into a tangled crime puzzle when her former husband, a physician, asks for help. Together they probe the eerie events unfolding at a prestigious horse‑racing track, uncovering dark secrets behind the sport.

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The Ex-Mrs. Bradford (1936) – Full Plot Summary & Ending Explained

Read the complete plot breakdown of The Ex-Mrs. Bradford (1936), including all key story events, major twists, and the ending explained in detail. Discover what really happened, and what it all means.

What’s After the Movie takes viewers on a complex and intriguing journey through the life of Jean Arthur’s character, Paula Bradford, a wealthy and successful mystery writer with a flair for the dramatic. Fresh from her global travels, Paula returns to her home to reconnect with her former husband, William Powell’s character, Dr. Lawrence “Brad” Bradford, a dedicated surgeon. Their marriage had ended previously because Paula’s penchant for involving herself in real murder cases was too much for Brad to handle, yet now she is determined to rekindle their relationship. She openly expresses her wish to reunite with him, hinting at her ongoing obsession with solving mysteries.

The story kicks off with a shocking incident at the racetrack. During a race, a jockey riding the favorite horse suddenly collapses and dies while leading—initially seen as a natural accident, but Paula’s keen instincts immediately suggest foul play—she becomes convinced it was murder. She convinces Brad, a bit hesitant at first, and Frank M. Thomas’s character, Mike North, the trainer of the horse, to investigate further. The mystery deepens when Brad notices peculiar traces of gelatin on the horse’s dead body, raising suspicions that something more sinister is involved.

Soon afterward, Brad receives an envelope at his residence addressed to Mike North. Curiously, North calls him shortly after, saying he sent the envelope and plans to pick it up. However, a mysterious voice claiming to be North later instructs Brad to meet him elsewhere but without the money—an odd and suspicious request. Brad, feeling increasingly cautious, opens the envelope himself and finds a substantial sum of money inside. To throw suspicion off, he replaces the money with torn pieces from a magazine. His suspicions are confirmed when a thief breaks into his suite, searching for the envelope. When a confrontation ensues between Brad and the burglar, Paula unexpectedly steps in to help, grabbing a skull in her attempt to assist—and in the process, she inadvertently knocks Brad out, allowing the intruder to escape.

The chaos escalates when the doorbell rings again. When Brad opens the door, he is horrified to find Mike North’s dead body falling into his lap. Now, the police are involved, and James Gleason plays Inspector Corrigan, who quickly names Brad as the prime suspect in North’s murder. With his reputation at stake, Brad is driven to uncover the truth behind the series of murders to clear his name.

As the investigation unfolds, a list of potential suspects emerges, each with possible motives. These include Ralph Morgan playing Leroy Hutchins, the owner of the winning horse; Grant Mitchell as John Summers, the lucrative horse-race proprietor; Mrs. Summers, who is secretly involved with Nick Martel (a bookie indebted to North for a large sum) played by Robert Armstrong. Even Brad’s own receptionist, Lila Lee as Miss Prentiss, is caught in the web of suspicion, seen in close contact with Martel.

Throughout his inquiries, Brad learns that North did not place the betting himself but had the wager made by someone else. The person who took the bet was instructed to send the money to a specific address, which led Brad and Paula to the scene of the crime: where Lou Pender, portrayed by Paul Fix, who was masquerading as North, has been murdered in a hidden bed after killing a spider. As Brad examines the scene, a shot rings out from a nearby window, though he is not seriously harmed—a clear sign that someone is trying to intimidate him.

The plot thickens as Brad deduces that all the murders are linked by a deadly method involving black widow spiders encapsulated in gelatin capsules. The killer would attach such a capsule to the victim—whether a corpse or a live person—and wait for the heat of the body to melt the gelatin, releasing the deadly spider. With police holding the $125,000 bet money, Brad fears the murderer might attempt the same act again.

Anticipating another attack, Brad sets up film cameras around the racetrack, knowing the same two horses will race again. On race day, despite precautions like inoculating the jockeys, the murderer attempts to strike once more. But thanks to Brad’s foresight, the killer’s plan is caught on film. The footage reveals Grant Mitchell’s character, Mr. Summers, sneaking a capsule down the jockey’s back, confirming what Brad suspected all along.

Confronted with the evidence, Mr. Summers admits his motive was revenge against his unfaithful wife and Nick Martel, whom he believed had betrayed him. Just as he pulls out a gun to escalate the situation, Brad intervenes and subdues him. In the ensuing struggle, Paula, trying to assist, accidentally knocks Brad out with a vase. Despite the chaos, love triumphs, and the couple happily remarry, reuniting after this harrowing adventure filled with deception, danger, and intrigue.

This film masterfully blends elements of suspense, mystery, and humor, creating a captivating story that keeps audiences guessing until the very end.


Last updated: April 24, 2026 at 12:42

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The Ex-Mrs. Bradford (1936) Plot Questions Answered – Summary FAQ

Explore frequently asked questions about The Ex-Mrs. Bradford (1936) with spoiler-rich answers covering the full plot summary, major story beats, character motivations, hidden details, and ending meaning. This movie summary FAQ helps explain confusing scenes, plot twists, and narrative decisions in clear, searchable detail.

Q1

How did the killer use black widow spiders in the murders?

A.

The killer placed black widow spiders inside gelatin capsules, then attached the capsules to the victims' bodies. The heat from the body would melt the gelatin, releasing the spider to bite and kill the victim. This explains the gelatin traces Dr. Bradford found on the jockey's body and the mysterious deaths that appeared natural at first.

Earlier, Brad notices gelatin on the jockey's body, which initially puzzles him before he connects it to the spider method.

black widow spidergelatin capsulemurder methodjockey deathpoison
Q2

Why was Dr. Bradford suspected of killing Mike North?

A.

When North's body fell into Brad's apartment, Inspector Corrigan immediately suspected him because North had been murdered in Brad's building, and Brad had recently received a mysterious envelope of money connected to the racing world. The circumstantial evidence made Brad the prime suspect, forcing him to investigate the real killer to clear his name.

Mike NorthsuspectInspector Corriganpoliceframed
Q3

What was the envelope of money that Brad received?

A.

Brad received an envelope containing a large sum of money addressed to Mike North. Since the calls about the envelope seemed suspicious, Brad opened it, found the money, and replaced it with torn magazine pages to throw off whoever was looking for it. A thief later broke in searching for this envelope, confirming it was connected to the murder plot.

The mysterious calls directing Brad to meet 'North' without the money hint that something valuable was being concealed.

envelopemoneythiefMike Northbet
Q4

Why did Mr. Summers commit the murders?

A.

Mr. Summers killed the jockey, Lou Pender (posing as North), and attempted to kill again because he sought revenge against his unfaithful wife and her lover Nick Martel. He blamed them for his humiliation and wanted to punish both by framing the racing world for murder while getting away with killing them through the spider method.

Mrs. Summers is shown secretly involved with Nick Martel, who owes money to North, establishing the triangle of betrayal.

Mr. SummersrevengewifeNick Martelmotive
Q5

How did the cameras catch Mr. Summers?

A.

Brad set up film cameras around the racetrack knowing the killer would attempt another attack during the next race with the same horses. He also inoculated the jockeys against spider bites as a precaution. When Mr. Summers tried to slip a capsule down the jockey's back during the race, the cameras captured the entire act, providing the evidence needed to arrest him.

Brad explicitly states he expects the killer to strike again at the race, showing his confidence in anticipating the criminal's behavior.

cameraracetrackevidencecaptured on filmMr. Summers
Q6

Why did Paula and Brad originally get divorced?

A.

Brad divorced Paula because her obsession with solving real murder cases was too much for him to handle. He was a dedicated surgeon who wanted a more stable life, while Paula couldn't resist getting involved in actual criminal investigations, which created an irreconcilable rift in their marriage despite their continued affection for each other.

divorcemarriagePaula Bradfordseparationmystery writer
Q7

Who was Lou Pender and why was he impersonating North?

A.

Lou Pender was a man who masqueraded as Mike North, likely as part of the murder scheme. Brad and Paula discover his body hidden in a Murphy bed after he killed a spider (which was part of the murder weapon that backfired). He was killed using the same spider method, making him another victim in the conspiracy.

Lou PenderimpersonationMurphy bedbodyfake North
Q8

How did Brad prove his innocence in North's murder?

A.

Brad proved his innocence by solving the actual murder case rather than simply claiming he was framed. He investigated the suspects, discovered the spider murder method, set up cameras at the racetrack, and captured Mr. Summers in the act of attempting to kill again. By identifying and exposing the real killer, Brad cleared his own name.

innocenceproveinvestigationsolving casecleared
Q9

Why did Paula accidentally knock Brad out?

A.

During the chaos of Brad confronting a burglar in their apartment, Paula tried to help by grabbing a skull and intervened in the struggle. In the confusion, she accidentally knocked Brad unconscious, which allowed the intruder to escape. This happens again at the end when Paula accidentally knocks Brad out with a vase while helping subdue Mr. Summers. These comedic mishaps highlight the screwball comedy tone of the film.

Paula's tendency to insert herself into danger despite good intentions is established early when she insists on investigating the jockey's death against Brad's warnings.

Paulaknocked outvaseskullaccidentcomedy
Q10

What was Nick Martel's connection to the murders?

A.

Nick Martel was a bookie who was indebted to Mike North for a large sum of money. This financial connection linked him to the web of suspects surrounding the racing world murder plot. While not the killer, his debt and secret relationship with Mrs. Summers made him a suspect in the investigation.

Nick MartelbookiedebtMrs. Summerssuspect
Q11

How did Brad protect the jockeys from the spider attacks?

A.

Brad inoculated the jockeys with an anti-venom before the crucial race. This medical precaution was part of his plan to trap the killer, if the spider was released, the inoculation would prevent the jockey from dying, allowing the killer's attempt to be captured on film without resulting in another death.

inoculationanti-venomjockeyprotectionrace
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Charming crime solvers who mix sharp banter with cracking the case.If you enjoyed the clever banter and romantic spark between the ex-couple in The Ex-Mrs. Bradford, you'll love these other movies. This list features films that pair a charming murder mystery with a central duo whose chemistry drives the story as much as the investigation does.

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High-Society Sleuth Stories like The Ex-Mrs. Bradford

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The narrative pattern involves a urbane and intelligent protagonist, who is not a professional detective, being drawn into a mystery within their privileged social circle. The investigation leverages their knowledge of high-society manners and connections, presenting a puzzle that is as much about social dynamics as it is about hard evidence, all while maintaining an air of elegance and fun.

Why These Movies?

These films are connected by their glamorous settings, their focus on amateur sleuths from the upper crust, and a tone that mixes intrigue with sophistication. The appeal lies in watching clever characters navigate a world of style and suspense.

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The Ex-Mrs. Bradford Timeline

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Characters, Settings & Themes in The Ex-Mrs. Bradford

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