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A Good Marriage (2014) movie poster

Plot Summary

A Good Marriage (2014) Plot Summary Explained

Release, runtime and language
2014 · 103 mins · English
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Directed by
Peter Askin
Starring
Joan Allen, Cara Buono, Stephen Lang, Anthony LaPaglia, Roe Hartrampf, Robert Hogan

Two can keep a secret… if one of them is dead. After 25 years of a good marriage, what will Darcy do once she discovers her husband’s sinister secret?

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

What Happens in A Good Marriage: Full Plot Summary

The whole story of A Good Marriage (2014) 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.

Darcy Anderson Joan Allen has shared 27 years of marriage with Bob Anderson Anthony LaPaglia, a Portland, Maine–based accountant, and together they run a quiet mail-order business that trades in rare coins. Their life is steady but unglamorous, built on routine days and small, shared pleasures. One afternoon, while Bob is away on business, Darcy heads to the garage in search of batteries and uncovers more than she expects: a pornographic magazine filled with sadomasochistic images that instantly unsettles her. In the same sweep of old belongings, she discovers a hidden compartment behind the baseboard and, inside, a small box containing the ID cards of Marjorie Duvall, a victim connected to a brutal serial killer known as “Beadie.” The jarring find marks a turning point in their marriage and in Darcy’s sense of safety.

The next morning, Darcy is shaken by the phone call from Bob, who senses her distress and tries to deflect it. Curious and alarmed, Darcy digs deeper online, learning about Beadie and cross-referencing Bob’s business records with the locations of the murders. The pattern is clear: Bob was near most of the killings. When Darcy confronts him, he reveals a chilling history. He explains that as teenagers he and a sadistic friend, Brian Delahanty (BD), once plotted a school shooting. Delahanty was hit by a truck before they could carry it out, but Bob insists he had “infected” Delahanty with dangerous ideas, a revelation that sheds a dark light on their past. He claims that after starting a family, his murderous alter ego subsided for years. He pleads with Darcy to bury the matter for the sake of their children and their future, and Darcy, choosing to protect them, agrees to a plan—on the condition that the ID cards be hidden deep in the woods.

Months pass, and a celebration sparks when Bob finds a rare 1955 doubled die cent; the couple goes out to toast the find. However, as champagne loosens Bob’s resolve, Darcy cooks up a lethal plan. She invites him upstairs under the pretense of intimacy, then ambushes him, pushing him down the stairs. The fall shatters his arm, neck, and back, and she suffocates him with a plastic bag to ensure there is no loose end. After removing the evidence, Darcy convinces the police and their children that Bob died in a drunken accident, and she begins to believe the worst is behind her. The house settles into a fragile quiet, and Darcy wonders if the danger has truly passed.

Not long after, Holt Ramsey [Stephen Lang], a retired detective who spent years investigating the Beadie murders and had questioned Bob, arrives at the Anderson home. Ramsey had noticed that Bob’s Chevrolet Suburban appeared near each victim and suspected him, a clue that unsettles Darcy. When she finally admits the truth about Bob’s role in the killings and the Beadie case, Ramsey reassures her that she “did the right thing” by ending the threat, and he departs. Before he leaves, she reveals one more detail—Delahanty’s name and the threat he still posed. In that moment, Darcy realizes the danger may have been closer than she thought, and she recognizes a hard-won peace in owning what she did. The quiet that follows is not merely the absence of danger but the hard-won clarity of having faced the truth and chosen a difficult course of action.

Last updated: October 03, 2025 at 06:46

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Plot questions answered

A Good Marriage Plot Explained: Your Questions Answered

The questions people ask most about A Good Marriage (2014): 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 Darcy kill her husband Bob?

Darcy kills Bob after discovering he was connected to the Beadie serial killings. When Bob confesses to having a murderous alter ego that he claims subsided after starting a family, Darcy initially agrees to hide the evidence to protect their children. However, months later after finding a rare coin and celebrating with champagne, she decides he is still too dangerous to live and lures him upstairs where she pushes him down the stairs and suffocates him with a plastic bag.

Foreshadowing: Earlier in the film, Bob mentions that his murderous side 'subsided' but never truly disappeared, hinting at Darcy's eventual fear that he could revert.

  • Darcy kills Bob
  • murder
  • premeditation
  • protection
  • serial killer connection
Q2

What was Bob's connection to the Beadie murders?

Bob Anderson was the serial killer known as Beadie, responsible for murdering multiple women including Marjorie Duvall. Darcy discovered his Suburban had been near each murder location, and she found Marjorie Duvall's ID cards hidden in a compartment in their garage. Bob confirmed his guilt during the confrontation, explaining he had killed before and could potentially kill again.

Foreshadowing: The discovery of the pornographic sadomasochistic magazine in the garage foreshadows Bob's darker sexual and violent tendencies.

  • Beadie serial killer
  • Bob Anderson murders
  • Marjorie Duvall
  • connection evidence
Q3

What happened between Bob and Brian Delahanty?

Bob revealed that as a teenager, he and his sadistic friend Brian Delahanty (BD) plotted a school shooting. The plan was thwarted when Delahanty was hit by a truck and killed before they could carry it out. Bob claimed he had 'infected' Delahanty with dangerous ideas, suggesting he was the intellectual driving force behind the planned attack.

Foreshadowing: This revelation explains Bob's claim that his murderous nature has always existed and can resurface.

  • Brian Delahanty
  • school shooting
  • teenage past
  • dark past
Q4

Why did Darcy agree to hide the evidence instead of going to the police?

Darcy chose to hide the evidence to protect her children. When Bob pleaded with her to bury the matter for the sake of their children and their future, she agreed to hide the ID cards deep in the woods rather than expose him. This decision reflects her initial prioritization of family stability over justice.

Foreshadowing: Darcy's protective maternal instinct is established early as a core character trait.

  • hide evidence
  • police
  • protect children
  • family decision
Q5

How did Darcy cover up Bob's murder?

After pushing Bob down the stairs and suffocating him, Darcy cleaned the scene thoroughly and removed all evidence. She then convinced the police and their children that Bob died in a drunken accident after celebrating the rare coin discovery. The authorities accepted the explanation, and Darcy was able to maintain her cover.

Foreshadowing: The celebration with champagne where Bob's 'resolve loosens' gives Darcy the opportunity she needs.

  • cover up
  • accident
  • police
  • evidence
  • death investigation
Q6

Why does retired detective Holt Ramsey come to the house?

Holt Ramsey spent years investigating the Beadie murders and had noticed Bob's Chevrolet Suburban near each victim. He suspected Bob but could never prove it. After Bob's death, Ramsey arrives to question Darcy, still believing her husband was the killer he had been hunting.

Foreshadowing: The timeline shows Ramsey tracking Bob's movements before the murder.

  • Holt Ramsey
  • detective
  • Beadie investigation
  • questions
Q7

What does Darcy tell Holt Ramsey about Bob?

Darcy finally admits the truth about Bob's role in the Beadie killings to Ramsey. He reassures her that she 'did the right thing' by ending the threat. Before Ramsey leaves, Darcy mentions Brian Delahanty's name and the ongoing threat he posed, revealing that the danger may not be over.

Foreshadowing: Ramsey's earlier suspicion about Bob validates Darcy's fears.

  • truth confession
  • Ramsey
  • admission
  • confession
Q8

Is Brian Delahanty still a threat at the end of the movie?

Yes, the film ends with Darcy realizing the danger may have been closer than she thought. After telling Ramsey about Delahanty, she understands that he still posed a threat. The ending suggests Delahanty could still be alive and dangerous, leaving Darcy with vigilance rather than true peace.

Foreshadowing: Bob's claim that Delahanty was 'infected' by his ideas implies Delahanty may have had his own murderous path.

  • Brian Delahanty threat
  • continued danger
  • alive
  • ending
Q9

What is the significance of the 1955 doubled die cent coin?

Bob discovers a rare 1955 doubled die cent, a valuable collector's coin. The couple celebrates by going out for champagne. The celebration serves as the trigger for Darcy's decision to kill Bob, she uses the occasion and Bob's loosened inhibitions from drinking to lure him upstairs to his death.

Foreshadowing: The rare coin discovery marks a turning point from their quiet life to violent action.

  • 1955 doubled die cent
  • rare coin
  • celebration
  • trigger
Q10

How does Darcy's motivation change throughout the film?

Darcy's motivation evolves from shock and betrayal upon discovery, to attempting to protect her family by hiding evidence, to ultimately deciding Bob must die. She transitions from a wife trying to preserve her marriage to someone who believes murder is the only way to ensure true safety for her children.

Foreshadowing: Her earlier decision to hide evidence shows she was already considering extreme measures.

  • motivation evolution
  • protection
  • kill
  • family
  • transformation

Movie threads

More Movies Like A Good Marriage, by Mood & Story

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

Thrillers about toxic domestic secrets like A Good Marriage

When a safe, familiar space becomes a prison of lies and danger. If the core premise of A Good Marriage gripped you—a wife discovering her husband's monstrous double life—you'll find similar tension here. These movies explore the chilling horror of betrayal within close relationships, where trust is the first casualty and safety is an illusion.

  • claustrophobic
  • suspenseful
  • paranoid
  • unsettling
  • grim
  • anxious
  • Tone: dark, tense, unsettling
  • Pacing: steady, escalating dread
Why these movies?

The story pattern: The narrative pattern typically involves a gradual or sudden discovery of a deeply hidden truth by a protagonist within their own home. This revelation initiates a spiral of fear, investigation, and confrontation, often pitting survival against love or loyalty, and culminating in a violent or morally complex resolution.

Why they belong together: Movies are grouped here for their shared focus on the psychological horror of domestic betrayal. They create a claustrophobic, unsettling mood by turning a place of safety into a source of dread, and they often feature heavy emotional weight and a dark, suspenseful tone.

Movies with a bleak aftermath like the ending of A Good Marriage

Stories where survival comes at a devastating moral and emotional cost. If you were struck by the bittersweet, heavy conclusion of A Good Marriage—where safety is achieved through a terrible act—this thread is for you. These are stories about characters who survive a crisis but are left hollowed by the cost, offering no easy happy endings.

  • grim
  • heavy
  • somber
  • psychological
  • moral dilemma
  • grief
  • Tone: dark, bittersweet, grim
  • Pacing: steady, character-driven
Why these movies?

The story pattern: The narrative journey follows a character through a harrowing ordeal, but the true climax is often the emotional fallout. The resolution is not triumphant but complicated, focusing on the psychological damage, moral compromises, and the bleak new reality the protagonist must navigate, resulting in a bittersweet or somber ending feel.

Why they belong together: These films are united by their focus on the heavy emotional consequences of survival. They share a dark, serious tone, prioritize psychological realism over catharsis, and leave the audience with a profound sense of the price paid for making it through.

Every angle

A Good Marriage (2014) Explained: Plot, Timeline & Characters

Everything about A Good Marriage 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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