The Long Arm (1956) — AI Story Visualization

Plot Analysis Summary

A police investigation traces a nationwide safe-breaking network from a false nightwatchman to a hidden key maker and his accomplice.

Story Structure — 6 Plot Phases

The Empty Safe

A burglar alarm produces no immediate evidence, but the next day a safe is discovered empty. The investigation begins when the safe proves to have been opened with a genuine key.

Key Events

• Alarm at Long Acre — Police answer an alarm but find nothing wrong after meeting the nightwatchman. Characters: Nightwatchman / Gilson Location: Premises in Long Acre, Central London
• Premises Search — The nightwatchman permits the police to search the premises. Characters: Nightwatchman / Gilson Location: Long Acre premises
• Empty Safe Discovered — The safe is found empty after being opened with a key. Location: Long Acre premises
• Ward Joins Investigation — Sergeant Ward begins searching for the fraudulent nightwatchman. Characters: Sergeant Ward Location: Police investigation offices
• Fourteen Safe Jobs Linked — The investigation links fourteen safe-breaking jobs across the country. Location: Police investigation offices

Keys Across The Country

The police connect fourteen safe-breaking jobs involving the same type of safe. Examination of the manufacturer's staff produces no immediate culprit, widening the mystery.

Key Events

• Common Safe Type Identified — Every targeted safe is the same type and was opened with a genuine key. Location: Police investigation offices
• Manufacturer Records Checked — Investigators obtain the names of current and former manufacturer employees. Location: Safe manufacturer
• Employees Cleared — The manufacturer's current and former staff are cleared. Location: Safe manufacturer
• Witness Spots Thieves — A young worker sees the thief climbing over a gate after another safe break-in. Location: Another targeted premises

The Witness And The Car

A witness spots the thieves but is deliberately struck by their getaway car. The abandoned vehicle and a newspaper inside it create a route toward North Wales and a former employee.

Key Events

• Getaway Car Strikes Witness — The thieves deliberately run over the witness while escaping. Location: Outside the targeted premises
• Dying Witness Gives Clue — Before dying, the victim passes limited information to the police. Location: Police inquiry scene
• Stolen Car Found — The hit-and-run vehicle is located in a scrapyard. Location: Scrapyard
• Newspaper Reveals Route — A newspaper inside the car points investigators toward North Wales. Location: Scrapyard
• North Wales Garage Lead — The newspaper lead directs the investigation to a garage and a deceased former employee. Location: Garage in North Wales

The Insurance Network

Investigators discover that an insurance agent identifies safes containing significant cash. They use a Royal Festival Hall gala night to create a controlled opportunity for the thieves.

Key Events

• Twenty-Eight London Safes — Investigators find twenty-eight more London safes of the same type. Location: London
• Insurance Tip-Off Discovered — The thief is revealed to receive information about safes holding substantial cash. Location: Police investigation offices
• Festival Hall Trap Planned — Police arrange for information about gala nights to reach the insurance agent. Location: Royal Festival Hall
• Insurance Agent Followed — Police tail the insurance agent to a meeting with the woman linked to the stolen car. Location: London streets

The False Death Unmasked

The woman linked to the stolen car is identified as Mrs Gilson, connecting the operation to the supposedly dead key maker. The police deduce that Gilson faked his death and made duplicate keys.

Key Events

• Mrs Gilson Identified — The woman connected to the stolen car is identified as the wife of the supposedly dead key maker. Location: Nearby meeting place
• False Death Exposed — The investigation concludes that Gilson faked his death after making duplicate keys for company safes. Characters: Nightwatchman / Gilson Location: Police investigation offices
• Festival Hall Break-In — Gilson breaks into the Royal Festival Hall safe as the police wait for him. Characters: Nightwatchman / Gilson Location: Royal Festival Hall

Festival Hall Arrests

Gilson enters the Royal Festival Hall trap and attacks Ward while trying to escape. The pursuit ends with Gilson and his wife arrested and the case solved.

Key Events

• Festival Hall Break-In — Gilson breaks into the Royal Festival Hall safe as the police wait for him. Characters: Nightwatchman / Gilson Location: Royal Festival Hall
• Ward Attacked During Escape — Gilson punches Ward and runs, but the police soon recapture him. Characters: Sergeant Ward, Nightwatchman / Gilson Location: Royal Festival Hall
• Car Park Pursuit — The woman linked to Gilson waits in her car while the pursuit continues. Location: Car park near Royal Festival Hall
• Windshield Broken — A detective jumps onto the car bonnet and breaks the windshield, obstructing the driver's view. Location: Car park near Royal Festival Hall
• Case Solved — Gilson and his wife are arrested, bringing the safe-breaking case to an end. Characters: Sergeant Ward, Nightwatchman / Gilson Location: Police custody

Story Breakdown

• Alarm And Theft — A seemingly harmless alarm conceals a safe theft executed with a genuine key.
  • Long Acre Alarm — Police find nothing wrong after meeting the nightwatchman at the premises.
  • Empty Safe — The safe is discovered empty the following day.
• Ward Joins Search — The investigation gains a dedicated detective and begins pursuing the fraudulent nightwatchman.
  • Fraudulent Watchman — The nightwatchman becomes the focus of the search.
  • Investigation Begins — Sergeant Ward starts working on the case.
• Nationwide Pattern — The police identify a repeated method involving one type of safe and genuine keys.
  • Fourteen Safe Jobs — Fourteen similar crimes are linked across the country.
  • Manufacturer Inquiry — Current and former employees of the safe manufacturer are checked.
• Witness And Vehicle — A violent escape creates the evidence trail that leads from the getaway car to North Wales.
  • Fatal Witness Attack — A witness is deliberately run over after seeing the thieves.
  • Newspaper Trail — A newspaper found in the abandoned car points to a garage.
• Insurance Intelligence — The investigation uncovers how the thieves learn which safes contain substantial cash.
  • Twenty-Eight Safes — Investigators locate more matching safes in London.
  • Cash Information — An insurance agent is found to be supplying information about valuable safes.
• Gilson Identity — The apparent death of the former key maker is revealed as part of the criminal scheme.
  • Mrs Gilson Identified — The woman linked to the stolen car is identified as Gilson's wife.
  • Duplicate Keys — Gilson is deduced to have made duplicate keys before faking his death.
• Festival Hall Trap — A staged cash opportunity brings the criminal operation into a controlled police confrontation.
  • Gala Night Bait — Information about gala-night cash is passed to the insurance agent.
  • Safe Break-In — Gilson enters the Royal Festival Hall to break into the targeted safe.
• Arrest And Resolution — The escape attempt fails, and the arrests close the safe-breaking case.
  • Ward Attacked — Gilson punches Ward while attempting to flee.
  • Case Solved — Gilson and his wife are arrested after the pursuit.

Directed by

Charles Frend

Key Cast

• Jack Hawkins — Supt Tom Halliday
• John Stratton — Sergeant Ward
• Dorothy Alison — Mary Halliday
• Michael Brooke — Tony Halliday
• Sam Kydd — Police Constable in Information Room