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The Unfaithful (1947) movie poster

Plot Summary

The Unfaithful (1947) Plot Summary Explained

Release, runtime and language
1947 · 109 mins · English
Directed by
Vincent Sherman
Starring
Ellen Corby, Steven Geray, Mary Field, Eve Arden, John Hoyt, Zachary Scott

After Christine Hunter kills a man who breaks into her home, she convinces both her husband and their attorney that she acted in self‑defence. The truth later emerges that the victim was in fact her lover, and Christine had previously posed for a scandalous statue he sculpted, casting doubt on her story.

On this page (5)
  1. 1 What happens: full plot
  2. 2 Plot questions answered
  3. 3 Movie threads
  4. 4 Movies like The Unfaithful
  5. 5 Every angle

Full plot summary · contains spoilers

What Happens in The Unfaithful: Full Plot Summary

The whole story of The Unfaithful (1947) 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.

On a quiet night at home, Christine Hunter stabs a man named Tanner in what she insists was self-defense, while her husband Bob Hunter is away.

Art shop owner, Martin Barrow, contacts Chris's lawyer and his good friend Larry Hannaford to discuss the aftermath of the incident. Barrow shows Hannaford a bust of Hunter's head, signed by Tanner, and it becomes clear that Hunter had known Tanner, even as Christine had maintained she never knew the man.

Barrow then takes the bust to Tanner's wife, Mrs. Tanner, who believes Christine had an affair and wants to punish her for murder. Barrow persuades her to relay this information to Bob Hunter(/actor/zachary-scott), hoping that the wronged husband would pay to avoid scandal. When Bob learns about the affair and sees the bust, he confronts Christine at home.

After she admits to having an affair with Tanner while Bob was away during the war, he demands a divorce. Christine is charged with murder and goes on trial. Hannaford persuades the jury that while Christine’s actions were adulterous, the stabbing was in self-defense.

Hannaford then convinces Bob, who has softened after a long talk with his cousin, Paula, and Christine to at least consider trying to save their marriage, rather than rushing into a divorce.

Last updated: February 24, 2026 at 09:46

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Plot questions answered

The Unfaithful Plot Explained: Your Questions Answered

The questions people ask most about The Unfaithful (1947): 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 did Christine kill Tanner if he was her lover?

Christine killed Tanner during an argument, though the exact trigger is not fully detailed in the summary. The key point is that she claimed self-defense, insisting he posed a threat to her that night. The fact that Tanner was her lover makes her claim more suspicious, as it suggests the killing may have been motivated by something other than pure self-defense, possibly related to their affair, potential exposure, or a confrontation between them.

  • christine hunter
  • tanner
  • self-defense
  • murder
  • affair
Q2

Why did Christine claim she never knew the man she killed?

Christine lied about knowing Tanner to protect herself from the consequences of her affair. Admitting she knew the victim would immediately connect her to a romantic relationship, making her claim of self-defense highly suspicious. By maintaining she never knew him, she attempted to create a narrative where a stranger broke into her home and she acted purely in self-defense.

  • christine hunter
  • tanner
  • lie
  • self-defense
  • affair
Q3

How did the bust of Christine become evidence in the case?

Art shop owner Martin Barrow discovered a sculpted bust of Christine signed by Tanner, proving they had known each other. Barrow used it initially to blackmail Christine, then delivered it to Tanner's wife, who wanted Christine punished for the murder. The bust directly contradicted Christine's claim that she never knew Tanner, undermining her self-defense narrative and revealing the affair.

  • bust
  • sculpture
  • evidence
  • tanner
  • barrow
  • blackmail
Q4

Why did Barrow use the bust to blackmail Christine?

Barrow saw an opportunity to profit from the scandal. As an art shop owner who had facilitated the commission of the bust, he knew its significance and attempted to leverage it for money. When that failed, he shifted tactics and gave the bust to Tanner's wife, hoping she would expose the affair to Christine's husband Bob, potentially leading to financial compensation for helping expose the truth.

  • martin barrow
  • blackmail
  • bust
  • scandal
  • money
Q5

Why was Christine acquitted of murder despite the affair being revealed?

Christine was acquitted because her lawyer Larry Hannaford successfully argued that regardless of her adultery, the stabbing was in self-defense. The jury accepted that Tanner had threatened Christine that night, even though they knew about the affair. The legal question centered on whether she feared for her life at the moment of the stabbing, not on her moral conduct.

  • christine hunter
  • acquitted
  • trial
  • self-defense
  • jury
  • hannaford
Q6

Why did Bob decide to stay with Christine after learning about the affair?

Bob initially demanded a divorce when Christine admitted to the affair, but he softened after a long conversation with his cousin Paula. The exact reasons are not detailed, but Paula apparently helped him see past the betrayal or consider the marriage worth saving. Hannaford also urged both of them to work on their marriage rather than rush into divorce, and Bob chose reconciliation.

  • bob hunter
  • christine
  • reconciliation
  • divorce
  • paula
  • cousin
Q7

Why did Tanner's wife want Christine punished for the murder?

Tanner's wife suspected her husband was having an affair with Christine and wanted revenge. When Barrow brought her the bust as evidence of the relationship, she saw an opportunity to hurt Christine by exposing the affair to Christine's husband. She was motivated by jealousy and the desire to see the woman who allegedly stole her husband face consequences.

  • mrs tanner
  • wife
  • revenge
  • affair
  • christine
Q8

What was Tanner's profession and why did it matter?

Tanner was a sculptor who created a bust of Christine. This connection was crucial because it proved Christine had lied when she claimed never to have known him. The existence of the sculpted bust, signed by Tanner, became the key piece of evidence that exposed her affair and contradicted her self-defense story.

  • tanner
  • sculptor
  • bust
  • evidence
  • profession
Q9

Why did Hannaford defend Christine despite knowing she lied?

As Christine's lawyer and Bob's friend, Hannaford was professionally obligated to provide her with the best possible defense. Even after learning she had lied about knowing Tanner, he focused on the legal question of self-defense rather than her moral conduct. His strategy was to convince the jury that the stabbing was justified regardless of the affair.

  • larry hannaford
  • lawyer
  • defense
  • christine
  • trial
Q10

How did seeing the bust affect Bob's reaction to Christine?

When Bob saw the bust of Christine sculpted by Tanner, combined with learning about the affair from Tanner's wife, he immediately confronted Christine and demanded a divorce. The bust was tangible evidence of the betrayal, making it impossible for Christine to deny the relationship. This visual proof intensified his emotional response and initially hardened his stance against her.

  • bob hunter
  • bust
  • divorce
  • confrontation
  • evidence

Movie threads

More Movies Like The Unfaithful, by Mood & Story

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

Domestic Noir movies like The Unfaithful

Dark thrillers where a crime exposes deep fractures in a marriage. If you enjoyed the tense marital breakdown in The Unfaithful, this thread finds other movies where a crime exposes domestic secrets. Discover similar thrillers and noir films about trust, betrayal, and the dark side of marriage.

  • noirish
  • tense
  • deceitful
  • claustrophobic
  • anxious
  • guilty
  • Tone: dark, tense, morally complex
  • Pacing: steady, methodical
Why these movies?

The story pattern: Narratives typically begin with a disruptive event that shatters a couple's facade. The plot then methodically peels back layers of deception through investigations, blackmail, or confrontations, forcing characters into morally compromising situations. The journey is less about a whodunit and more about the psychological unraveling of a relationship under intense pressure.

Why they belong together: These movies are grouped together because they share a core focus on the intersection of crime and domestic life. They feature a DARK tone, STEADY pacing that reveals secrets methodically, and a BITTERSWEET or bleak emotional conclusion where legal innocence often comes at the cost of personal devastation.

Movies about lies spiraling out of control like The Unfaithful

Tense stories where a single lie spirals into inescapable consequences. Fans of The Unfaithful's anxious unraveling of a false story will find more here. Explore similar movies where a single lie leads to blackmail, legal drama, and the threat of scandal in this collection of tense thrillers.

  • anxious
  • tense
  • deceitful
  • claustrophobic
  • guilty
  • noirish
  • Tone: anxious, deceitful, tense
  • Pacing: steady, escalating
Why these movies?

The story pattern: The narrative follows a clear cause-and-effect chain reaction. A character tells a lie to avoid immediate consequences, but this act attracts outside threats (like a blackmailer) and internal pressure from a gnawing conscience. The plot steadily escalates the stakes, moving from personal guilt to public exposure, often culminating in a trial or confrontation that forces the truth into the open.

Why they belong together: These films share a specific structural pattern: a lie that spirals. They are united by a consistently tense and anxious mood, a STEADY pacing that builds dread with each new complication, and a MODERATE complexity from the interplay of deception and consequence. The emotional core is the psychological toll of maintaining a facade.

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Every angle

The Unfaithful (1947) Explained: Plot, Timeline & Characters

Everything about The Unfaithful 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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