Dial M for Murder (1954) Ending Explained

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By Lila Reelman
June 19, 2025

TL;DR:
In Dial M for Murder, Tony Wendice (Ray Milland) meticulously plans to murder his wealthy wife Margot (Grace Kelly) to inherit her fortune. He blackmails an old acquaintance, Swann, into committing the murder, but Margot kills Swann in self-defense. Tony then manipulates evidence to frame Margot for premeditated murder. Inspector Hubbard (John Williams) unravels Tony's scheme by staging a fake robbery, exposing Tony's guilt. In the end, Margot is exonerated, and Tony is arrested. The film concludes with Hubbard revealing his clever deception, leaving Tony trapped by his own plan.

Detailed Explanation of the Ending

The climax of Dial M for Murder revolves around Inspector Hubbard's ingenious trap to expose Tony Wendice's guilt. After Margot is convicted of Swann's murder, Hubbard suspects Tony's involvement and devises a plan to trick him into confessing. He stages a fake burglary, pretending to be an accomplice who will blackmail Tony. Hubbard plants a fake letter implicating Tony and leaves the apartment key in a place where Tony would logically retrieve it-exactly as he did during the original murder plot. When Tony reaches for the key, Hubbard catches him red-handed, proving he knew its location because he orchestrated the murder.

The brilliance of the ending lies in Hitchcock's use of dramatic irony-the audience knows Tony's guilt, but the suspense builds as Hubbard methodically outsmarts him. The final confrontation in the apartment is tense yet satisfying, as Hubbard reveals his deception with a calm, almost amused demeanor. Tony, realizing he's been outplayed, has no choice but to surrender. The film ends with Margot embracing her lover, Mark (Robert Cummings), while Tony is led away by the police, his cold, calculating nature finally leading to his downfall.

Unresolved Questions & Possible Answers

  1. Did Margot suspect Tony before the murder attempt?
    • Possible Answer: Margot seems oblivious to Tony's resentment, but her later willingness to trust Hubbard suggests she may have had doubts.
  2. How did Hubbard deduce Tony's plan so precisely?
    • Possible Answer: Hubbard likely noticed inconsistencies in Tony's story, such as his suspiciously detailed alibi and the convenient placement of evidence.
  3. What happens to Margot and Mark after the trial?
    • Possible Answer: Given Margot's trauma, she may struggle with trust, while Mark's loyalty is reaffirmed-but their relationship's future is left open.
  4. Why didn't Tony just divorce Margot?
    • Possible Answer: Tony's greed and pride drove him to murder-he wanted her fortune without the scandal of divorce.

Personal Opinion on the Ending & Film

Dial M for Murder is a masterclass in suspense, with Hitchcock expertly tightening the noose around Tony as his plan unravels. The ending is immensely satisfying because Hubbard-representing justice-outsmarts Tony at his own game. Grace Kelly's performance as Margot adds emotional depth, making her near-execution harrowing. However, some might argue the resolution is too neat, with Tony's arrest feeling inevitable. Still, Hitchcock's restrained direction and the confined setting amplify the tension, making it a timeless thriller. The lack of graphic violence-relying instead on psychological manipulation-proves Hitchcock's genius in crafting fear through implication rather than spectacle.

Ultimately, the film's ending reinforces Hitchcock's theme that crime doesn't pay, but it's Hubbard's cleverness-not brute force-that ensures justice prevails. The final shot of Tony, defeated and silent, is a chilling reminder that even the most meticulous plans can collapse under scrutiny. Dial M for Murder remains a standout in Hitchcock's filmography, blending wit, suspense, and a flawless execution of the perfect crime gone wrong.