Character Relationship Map: Beat the Devil

Characters

• Billy Dannreuther (played by Humphrey Bogart) — protagonist

  A formerly wealthy American now in financial trouble, reluctantly partnering with crooks to acquire uranium-rich land in Africa. He suspects Major Ross of murder, survives a staged car crash, thwarts...

• Gwendolen Chelm (played by Jennifer Jones) — protagonist

  A flighty and imaginative British woman married to Harry. She has an affair with Billy, exaggerates her husband's role, and later exposes the crooks' uranium scheme and murder plot to authorities, ult...

• Peterson (played by Robert Morley) — supporting

  One of the crooks attempting to secure uranium-rich land in Africa. He suspects the Chelms of competition, stages a fatal car crash, fakes his death to manipulate Harry, orders an assassination attemp...

• Julius O'Hara (played by Peter Lorre) — supporting

  One of the four crooks participating in the uranium land scheme alongside Peterson, Major Ross, and Ravello. He is arrested at the end along with the other conspirators.

• Harry Chelm (played by Edward Underdown) — supporting

  A proper and traditional British man who travels with his wife Gwendolen. He discovers the crooks' uranium scheme, attempts to expose it, survives an assassination attempt and imprisonment, and ultima...

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Gwendolen Chelm → Harry Chelm (Family Spouses) — Their marriage survives deception, scandal, and separation.

  The plot identifies Gwendolen as Harry's wife, and they travel together on the same ship.

• Billy Dannreuther → Gwendolen Chelm (Romantic Lovers) — Their illicit affair complicates the expedition and their marriages.

  While waiting in Italy, Billy and Gwendolen have an affair.

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Julius O'Hara → Harry Chelm (Conflict Scheme Opponent) — O'Hara's criminal objectives conflict with Harry's attempt to expose them.

  Harry discovers the crooks' scheme and intends to inform the authorities; Julius O'Hara is later arrested as one of the conspirators.

• Julius O'Hara → Gwendolen Chelm (Conflict Criminal Adversary) — O'Hara is implicated in the group that Gwendolen helps authorities dismantle.

  Gwendolen exposes the scheme, and Julius O'Hara is arrested along with the other conspirators as a result of the investigation.

• Peterson → Julius O'Hara (Alliance Criminal Associate) — They belong to the same criminal enterprise and are arrested together.

  Peterson and Julius O'Hara are identified as two of the four crooks pursuing the uranium-rich land scheme.

• Peterson → Harry Chelm (Conflict Murderous Adversary) — Harry threatens Peterson's criminal scheme, making him a direct target.

  Peterson learns that Harry intends to inform the authorities and orders an assassination attempt against him.

• Gwendolen Chelm → Peterson (Conflict Informer And Accused) — Gwendolen's testimony directly causes Peterson's arrest.

  After landing, Gwendolen reveals Peterson's scheme, his involvement in the murder, and his attempt to kill Harry.

• Billy Dannreuther → Harry Chelm (Alliance Uneasy Ally) — Billy protects Harry despite their connection through Gwendolen.

  Billy thwarts the attempt to kill Harry and later goes to rescue him when the ship is abandoned.

• Billy Dannreuther → Peterson (Alliance Reluctant Partner) — A forced partnership driven by financial desperation and the land scheme.

  Billy is reluctantly working with Peterson and the other crooks to acquire uranium-rich land in British East Africa.

Story Analysis

A desperate criminal expedition collapses through deception, improvised survival, romantic betrayal, and an unexpected reversal of fortune.

Plot Progression

1. A Scheme Among Strangers — Billy joins Peterson and the other crooks in a uranium land scheme. The arrival of Harry and Gwendolen introduces romantic and strategic complications.
2. Affairs And False Deaths — Billy and Gwendolen begin an affair while Peterson suspects the Chelms of competing for the land. A car crash falsely convinces others that Billy and Peterson are dead.
3. Murder At Sea — The supposedly dead men return just as the ship sails. Harry threatens to expose the scheme, and Billy stops the resulting assassination attempt.
4. Escape Across The Coast — The ship breaks down, forcing the passengers into lifeboats and onto an African beach. Billy uses improvisation and charm to secure their release.
5. Truth And Fortune — Back in Italy, Gwendolen exposes the criminal scheme and the conspirators are arrested. Harry acquires the land, while his marriage moves toward forgiveness.