Story Structure — 5 Plot Phases
A City Under Suspicion
The film introduces San Francisco in documentary style before a murder investigation focuses on a young woman. Her boyfriend and a bar pianist become connected to the case.
Key Events
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San Francisco Documentary Opening — The film opens in a documentary-style presentation of San Francisco.
Location: San Francisco
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Murder Case Emerges — A murder case becomes the central problem.
Location: San Francisco
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Evidence Points to Woman — Evidence and circumstances identify a young woman as the main suspect.
Location: San Francisco
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Boyfriend Faces Suspicion — The woman's boyfriend, a police detective, becomes connected to the case.
Location: San Francisco
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Songwriter Introduced — A struggling songwriter is introduced while playing piano in a bar.
Location: Bar
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Evidence Withheld — The detective and songwriter both withhold evidence from the police.
Location: San Francisco
Protection and Concealment
The detective and songwriter withhold evidence while ostensibly protecting the woman. She believes the victim died accidentally during an attempted sexual assault.
Key Events
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Evidence Withheld — The detective and songwriter both withhold evidence from the police.
Location: San Francisco
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Protection Motives Revealed — Both men ostensibly act to protect the woman from the investigation.
Location: San Francisco
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Woman Reconstructs Attack — The woman believes she accidentally killed the victim after an attempted sexual assault.
Location: San Francisco
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Police Pressure Intensifies — The murder investigation increases pressure on the people connected to the case.
Location: San Francisco
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Woman Learns Songwriter Is Innocent — The woman knows that the songwriter did not commit the murder.
Location: San Francisco
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Dragnet Targets Songwriter — The songwriter becomes the main suspect during a police dragnet.
Location: San Francisco
Flight from the Dragnet
The woman learns the songwriter did not commit the murder and helps him escape when police make him the main suspect. Their shared danger creates trust.
Key Events
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Dragnet Targets Songwriter — The songwriter becomes the main suspect during a police dragnet.
Location: San Francisco
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Escape from Police Dragnet — The woman helps the songwriter escape the police dragnet.
Location: San Francisco
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Shared Danger Creates Trust — The escape places the woman and songwriter in shared danger.
Location: San Francisco
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Romance Develops — The woman and songwriter fall in love while facing the murder investigation.
Location: San Francisco
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The Couple Compares Notes — The woman and songwriter compare their knowledge of the murder.
Location: San Francisco
Love Reveals the Truth
The woman and songwriter fall in love and compare their accounts of the murder. Their discussion shows that the apparent explanation cannot be correct.
Key Events
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The Couple Compares Notes — The woman and songwriter compare their knowledge of the murder.
Location: San Francisco
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Murder Timeline Reconsidered — Their discussion exposes contradictions in the apparent explanation of the murder.
Location: San Francisco
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A Third Culprit Suspected — They realize that someone else must be responsible for the murder.
Location: San Francisco
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Boyfriend Exposed — The woman's boyfriend is revealed as the actual murderer.
Location: San Francisco
Guilt Cannot Stay Hidden
The boyfriend is revealed as the actual murderer and attacks the couple to conceal his guilt. His failure leads to his arrest.
Key Events
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Boyfriend Exposed — The woman's boyfriend is revealed as the actual murderer.
Location: San Francisco
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Attempted Silencing — The murderer attempts to kill the woman and songwriter to hide his guilt.
Location: San Francisco
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Murderer Arrested — The boyfriend is arrested after attempting to conceal his guilt.
Location: San Francisco