Johnny O’Clock

Johnny O’Clock

Year: 1947

Runtime: 95 mins

Language: English

Director: Robert Rossen

CrimeDramaThrillers and murder mysteriesNoir and dark crime dramasSuspenseful crime thrillers

When an employee at an illegal gambling den dies, her sister Nancy investigates and meets Johnny O’Clock, a partner in the casino. Though initially aloof, Johnny slowly returns Nancy’s affection and plans to flee with her, but internal power struggles endanger their escape. As he tries to leave the operation, his criminal past catches up.

Warning: spoilers below!

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Timeline – Johnny O’Clock (1947)

Trace every key event in Johnny O’Clock (1947) with our detailed, chronological timeline. Perfect for unpacking nonlinear stories, spotting hidden connections, and understanding how each scene builds toward the film’s climax. Whether you're revisiting or decoding for the first time, this timeline gives you the full picture.

1

Casino partnership and Nelle's love triangle

Johnny O'Clock is a junior partner in an upscale casino alongside Guido Marchettis. Guido's wife Nelle is secretly in love with Johnny, creating tension in their professional circle. To mark their entanglement, Nelle gives Johnny an expensive custom pocket watch, the twin of a gift she gave Guido, with Johnny's version bearing a romantic inscription on the back.

Casino
2

Johnny gives Harriet the watch and a note to return to Nelle

Johnny hands Harriet Hobson, a hat-check girl at the casino, the watch and a note instructing her to return it to Nelle. The gesture binds Harriet to Johnny in a way that further entangles the love triangle. The gift and the note foreshadow the jealousy and danger to come.

Casino
3

Harriet's apparent suicide by gas

Shortly after receiving the watch, Harriet appears to commit suicide by gas, triggering an investigation among suspects. Her sister Nancy arrives seeking answers and becomes drawn to Johnny. The tragedy sets in motion a web of suspicion and desire that drives the plot forward.

4

Nancy arrives and learns Harriet was poisoned

Nancy, Harriet's sister, confronts the casino and investigators to uncover what happened to Harriet. Inspector Koch informs them that Harriet was killed by poison, not suicide, which shocks all involved. Nancy's growing attraction to Johnny complicates her quest for truth.

Police HQ
5

Blayden's involvement and the ensuing suspicions

Harriet had been dating Chuck Blayden, a crooked cop who wants to edge Johnny out of his game. When Blayden is found dead, Koch suspects either Johnny or Guido, escalating the danger and forcing both men to watch their backs. The case blends crime with personal revenge.

6

Johnny falls for Nancy

Despite his efforts to resist, Johnny gradually falls for Nancy, drawn by her vulnerability and presence. The romance develops amid a storm of accusations and danger, threatening his loyalty to Nelle and life in the casino world. Their bond becomes Johnny's emotional anchor as the plot tightens.

7

Koch shows Johnny the watch and note; an abrupt breakup follows

Koch confronts Johnny and shows him both his own watch and the note about Nancy, forcing Johnny to end his affair with Nancy and escort her to the airport. The moment crystallizes Johnny's double life and the costs of his choices. Nancy's heartbreak signals a deeper commitment to truth and protection.

Airport
8

Drive-by shooting on the road; Nancy's realization

As Johnny drives with Nancy toward departure, a drive-by shooting erupts, narrowly missing them. Nancy realizes Johnny was trying to protect her, and she refuses to leave him despite the danger. The couple's resolve hardens even as the threat closes in.

On the road
9

Plan to flee to South America and cashing out

Johnny and Nancy decide to flee to South America, and Johnny brazenly cashes in his casino share to fund the escape. The plan represents a radical break from their corrupt surroundings and a bid for a fresh start. The couple steels themselves for the risks ahead.

Casino
10

Guido's confrontation; gunfight ends with Guido dead and Johnny wounded

Guido confronts Johnny with a gun when Johnny's back is turned, triggering a shootout in which Guido is killed and Johnny is wounded. The outcome cements Johnny's fate within the criminal world and heightens the stakes for his survival. The violence marks a pivot point toward surrender or confrontation with the law.

Casino
11

Nelle's self-defense offer and accusation of murder

Nelle offers to testify that Johnny's actions were self-defense if he returns to her, but Johnny refuses. She then tells Inspector Koch that it was cold-blooded murder, attempting to manipulate the investigation. Johnny accepts that the truth might not be believed, given the circumstances.

Police HQ
12

Nancy persuades Johnny to surrender

Nancy convinces Johnny that telling the truth is worth the sacrifice, leading him to decide to give himself up. She pledges to stand by him and face the consequences together, even if it costs them their freedom. The film ends with Johnny surrendering to Inspector Koch.

Police HQ

Last Updated: October 09, 2025 at 10:44

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Johnny O’Clock Summary

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Characters, Settings & Themes in Johnny O’Clock

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