Character Relationship Map: Margin for Error

Characters

• Sophia Baumer (played by Joan Bennett) — protagonist

  Sophia is Karl Baumer's Czechoslovak wife, who tells Moe that she despises her husband and married him to secure her father's release from prison. She warns Horst about Karl's plan to frame Max, then...

• Moe Finkelstein (played by Milton Berle) — supporting

  Moe is a New York police officer assigned with a colleague to protect German consul Karl Baumer. At first he resigns rather than guard a Nazi, but Captain Mulrooney persuades him to serve. Moe discove...

• Karl Baumer (played by Otto Preminger) — supporting

  Karl is the German consul in New York and the man Moe is assigned to protect. He has squandered money intended for sabotage, is in trouble with Berlin, and plots to frame Max for Horst's murder. Durin...

• Baron Max von Alvenstor (played by Carl Esmond) — supporting

  Max is Karl Baumer's secretary, who has become disillusioned with his employer and refuses to delay a damaging financial report to Berlin. Karl tries to frame him for Horst's murder. After Karl is kil...

• Otto Horst (played by Howard Freeman) — supporting

  Horst is an associate of Karl Baumer who has been ordered to procure false identification cards for German saboteurs targeting an American port. After Sophia warns him that Karl intends to frame him,...

• Dr. Jennings (played by Clyde Fillmore) — supporting

  Dr. Jennings is one of the guests at the Baumer residence during the radio broadcast, alongside Horst, Max, and others. The summary places him at the gathering where Karl is killed, but does not descr...

Canonical Relationships

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

• Karl Baumer → Baron Max von Alvenstor (Professional Employer And Secretary) — Their professional relationship collapses when Max rejects Karl's political and financial demands.

  Max is Karl's secretary and refuses to delay a damaging financial report to Berlin.

• Sophia Baumer → Karl Baumer (Romantic Spouses) — Their marriage is politically coerced and emotionally hostile.

  Sophia is identified as Karl's Czechoslovak wife and says she married him to secure her father's release.

• Moe Finkelstein → Karl Baumer (Professional Assigned Bodyguard) — Moe protects and investigates the German consul despite his political hostility toward him.

  Moe is ordered to serve as Karl Baumer's bodyguard by the mayor of New York City.

Story Dynamics

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

• Otto Horst → Dr. Jennings (Social Consulate Acquaintances) — They occupy the same guest circle during the central murder sequence.

  Horst and Dr. Jennings are both listed among the guests listening to the radio speech at the consulate.

• Karl Baumer → Dr. Jennings (Social Associates) — Their connection is established through the consular gathering surrounding the murder.

  Dr. Jennings is present as a guest while Karl, Sophia, Horst, and Max listen to the radio speech.

• Baron Max von Alvenstor → Otto Horst (Conflict Opposing Operatives) — Max helps law enforcement connect Horst to the planned port bombing.

  Max later identifies Horst as an accomplice to the saboteurs, leading to Horst's arrest.

• Karl Baumer → Otto Horst (Conflict Political Adversaries) — Karl seeks Horst's elimination because Horst is connected to the sabotage operation.

  Karl is ordered to dispense with Horst and plots to frame him for murder.

• Sophia Baumer → Baron Max von Alvenstor (Alliance Conspiratorial Allies) — Max protects Sophia immediately after the shooting and helps conceal the apparent circumstances.

  After Sophia shoots Karl, Max urges her to escape before anyone sees her.

• Sophia Baumer → Otto Horst (Conflict Protective Adversaries) — Sophia attempts to protect Horst while their situation becomes entangled in Karl's murder.

  Sophia warns Horst that Karl intends to frame him for murder, after which Horst begins carrying a gun.

• Moe Finkelstein → Baron Max von Alvenstor (Alliance Investigative Ally) — Their connection develops from interrogation into cooperation against the larger plot.

  Moe questions Max about the murder, while Max later helps expose Horst and stop the sabotage.

• Moe Finkelstein → Sophia Baumer (Conflict Investigator And Suspect) — Moe investigates Sophia while trying to determine whether her confession is truthful.

  After discovering Karl's body, Moe questions Sophia, who readily confesses to the killing.

Story Analysis

A politically charged murder investigation unfolds alongside a race to prevent sabotage, exposing the fatal consequences of authoritarian intrigue.

Plot Progression

1. An Unwanted Assignment — Moe is ordered to protect Karl Baumer despite Baumer's Nazi identity. He initially resigns, then accepts the assignment as a test of democratic duty.
2. Secrets at the Consulate — Moe discovers Baumer's financial misconduct and Max's refusal to conceal it. Sophia reveals that her marriage to Baumer was forced by her father's imprisonment.
3. The Consular Murder — Baumer targets Horst, while Sophia warns Horst and heightens the danger. During a radio gathering, Horst stabs Baumer and Sophia shoots him.
4. Confessions and Contradictions — Moe investigates the body as Sophia and Max provide conflicting confessions. The discovery of shooting, stabbing, and poisoning makes the case more complicated.
5. The Port and the Poison — Max races to stop the port bombing, leading to the capture of the saboteurs and Horst's arrest. The final reconstruction shows that Baumer accidentally drank poison intended for Max.