Character Relationship Map: Diamond Machine

Characters

• Lemmy Caution (played by Eddie Constantine) — protagonist

  Interpol agent and spy protagonist known for gritty undercover operations across Europe.

• Fernanda (played by Maria Frau) — protagonist

  Intelligent ally aiding Caution in Italian espionage cases.

• Istria (played by Roger Hanin) — supporting

  Gang leader orchestrating theft of scientific plans.

• Romano (played by René Clermont) — supporting

  Criminal associate involved in diamond machine theft.

• Tony Martinelli (played by François Perrot) — supporting

  Criminal operative handling stolen technology.

• Giuseppe (played by Furio Meniconi) — supporting

  Local smuggler navigating coastal routes.

Story Dynamics

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

• Istria → Romano (teammate)

  Co-conspirators in the theft of synthetic diamond plans.

• Lemmy Caution → Giuseppe (Social Local Contact) — Giuseppe provides local assistance to Lemmy
• Lemmy Caution → Tony Martinelli (Conflict Antagonist) — Tony Martinelli is an antagonist working against Lemmy
• Lemmy Caution → Istria (Social Contact) — Istria is a contact in Italy
• Lemmy Caution → Fernanda (Alliance Ally) — Fernanda assists Lemmy in his investigation

Story Analysis

A spy thriller about stolen diamond machine plans and the investigation to recover them

Plot Progression

1. The Diamond Conspiracy — The professor invents a diamond machine, but his plans are stolen by the Histris gang, prompting the FBI to intervene and send Lemmy Caution to Italy.
2. Italian Investigation — Lemmy arrives in Italy, begins his investigation, and encounters various characters including the orphan girl who becomes his protégée.
3. Confrontation in the Shadows — Lemmy faces off against the Histris gang, leading to fights, a fall in a well, and a final confrontation to recover the diamond machine plans.