Directed by

Gregory Ratoff
Made by

Edward Small Productions
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Read the complete plot summary and ending explained for Black Magic (1949). From turning points to emotional moments, uncover what really happened and why it matters.
Joseph Balsamo, Orson Welles, known as Count Cagliostro, unfolds through a series of flashbacks that trace a complex rise from hardship to notoriety. The tale begins with a French gypsy boy who endures sieges of cruelty—tortured under Viscount de Montaigne, Stephen Bekassy and doomed when his parents are ordered to hang. He is saved by a band of gypsies led by Gitano, Akim Tamiroff, and he swears revenge against the Viscount, fanning the flames of a restless, calculating ambition. This origin sets the stage for a life shaped by illusion, manipulation, and a hunger for power that will soon be fueled by science’s newest frontier.
As years pass, the young man encounters the hypnotic arts of Dr. Mesmer, Charles Goldner, whose work he initially misreads as mere trickery. Rather than healing, he seizes the method as a weapon, bending minds and bending fate to his will. Adopting the name Count Cagliostro, he becomes a dazzling figure across continental courts, rich in wealth and prestige, renowned for the uncanny control he wields over others. It is this ascent, built on charisma and a dangerous new skill, that brings him into a perilous alliance of aristocrats and conspirators. The plot thickens when de Montaigne teams with Madame du Barry, Margot Grahame, to pull off a daring ruse: Lorenza, Nancy Guild, will impersonate Queen Marie Antoinette to obtain a fabled necklace and tilt the balance of power in their favor. The scheme binds together a web of envy, romance, and deception, with Zoraida, Valentina Cortese, at its center as she grapples with jealousy of Lorenza’s growing influence over Cagliostro.
The narrative follows Lorenza’s fraught entanglement with Cagliostro, as well as the chaotic love triangle that forms around her. Gilbert, Frank Latimore, tries to protect or rescue Lorenza as she is drawn deeper into Cagliostro’s orbit, and the plot ultimately culminates in a spectacular collapse of Cagliostro’s carefully constructed world. The actions of the conspirators coincide with a turning point in the French court: King Louis XV, Robert Atkins, dies, and Marie Antoinette ascends to influence, a shift that intensifies the pressure on Cagliostro and his schemes. The queen’s response to the threat looming over her reputation becomes decisive, and the stage is set for a confrontation that could undo them all.
Zoraida confronts the unfolding deception by bringing Lorenza before Marie Antoinette to reveal the web of lies surrounding Cagliostro’s plot. Lorenza, initially willing to testify, is nonetheless subjected to Cagliostro’s chilling power, and even the venerable Dr. Mesmer’s influence seems to tilt toward salvation for the cunning hypnotist. A dramatic moment arrives when Mesmer uses a tangible symbol—the necklace itself—to force Cagliostro to confess, breaking the spell that has sustained him. Yet the climactic chase continues, with Cagliostro waking from trance and escaping alongside the hypnotized Lorenza. In the end, Gilbert closes the pursuit by confronting Cagliostro in a sword fight, delivering the final, fatal blow that ends the Count’s long and infamous masquerade.
Follow the complete movie timeline of Black Magic (1949) with every major event in chronological order. Great for understanding complex plots and story progression.
Origins and vow of revenge
As a child, Balsamo endures torture under Viscount de Montaigne and witnesses his parents ordered to hang. He is rescued by a band of gypsies led by Gitano, who raise him and spark a vow of revenge against de Montaigne. The seeds of his future power are planted in the crucible of his early hardship.
Learns hypnosis and gains power
Years later he meets Dr. Mesmer and learns the secrets of hypnosis. Ignoring Mesmer's warning to use his powers for healing, he exploits them to manipulate people, amassing wealth and prestige. Adopting the name Count Cagliostro, he becomes a dazzling, controversial figure across Europe.
Rise to fame across Europe
With hypnotic talent and a magnetic persona, Cagliostro becomes famous throughout European courts. He uses his powers to gain influence, wealth, and followers who believe in his mystical abilities. His legend grows as he plays the role of healer, aristocrat, and occult impresario.
The Lorenza plot is set in motion
Cagliostro aligns with gypsies and court conspirators to substitute Lorenza for Queen Marie Antoinette, a plan organized by de Montaigne with Madame du Barry. The conspirators scheme to have Lorenza impersonate the Queen and purchase a frivolous necklace. Gitano and Zoraida aid in the plot before it begins to unravel.
Love, jealousy, and capture
Lorenza falls under Cagliostro's power, forgetting her true love Gilbert. Gilbert runs away with Lorenza, but Cagliostro recaptures them and, under hypnosis, weds Lorenza. The perilous romance unfolds against a backdrop of trickery and power.
A royal turning point
King Louis XV dies and Marie Antoinette ascends the throne, setting the stage for the queen's vulnerability to Cagliostro's schemes.
The exile order
Marie Antoinette orders Cagliostro to leave the country, cutting him off from court influence. Cagliostro retreats, vowing to pursue power elsewhere while Lorenza remains under his spell.
Lorenza impersonates the Queen and the necklace scheme
Lorenza impersonates the Queen and pretends to be in love with de Montaigne as part of Cagliostro's ruse. He buys the queen's necklace, triggering public scandal and damaging Marie Antoinette's reputation in a foreshadowing echo of the real affair.
Zoraida reveals the plot; Lorenza prepared to testify
Zoraida brings Lorenza to Marie Antoinette and reveals Cagliostro's plot to discredit the Queen. Lorenza agrees to testify against Cagliostro, hoping to stop the conspiracy. The court becomes the stage for a high-stakes confrontation.
The trial and manipulation intensify
At the trial, Cagliostro hypnotizes Gilbert into testifying against the Queen. Lorenza is pressed to testify but is forced to say she knows nothing, under Cagliostro's influence. The courtroom atmosphere thickens as secrets threaten the monarchy.
Mesmer's counter-move and confession
Dr. Mesmer uses the Queen's necklace to hypnotize Cagliostro into confessing. Cagliostro awakens from the trance, but the confession has already shifted the balance of power. Lorenza is abducted by Cagliostro during the escape.
Escape and pursuit
Cagliostro escapes with Lorenza, still under his hypnosis. Gilbert pursues them, determined to bring Cagliostro to justice.
Final duel and death
In a climactic sword fight, Gilbert catches up with Cagliostro and kills him. The flamboyant trickster is finally defeated as the tale reaches its grisly close.
Explore all characters from Black Magic (1949). Get detailed profiles with their roles, arcs, and key relationships explained.
Joseph Balsamo / Count Cagliostro (Orson Welles)
A brilliant yet ruthless con-artist who uses hypnosis and charm to ascend Europe's elite circles. His relentless ambition drives wealth, power, and a dangerous, deceitful path.
Lorenza (Marie Antoinette / Lorenza) (Nancy Guild)
A young woman drawn into a perilous plot, whose perceived innocence makes her a pawn in a larger scheme. Her role tests loyalty as she is manipulated and used in impersonations of the Queen.
Zoraida (Valentina Cortese)
A gypsy woman whose passion and jealousy propel part of the plot. Her loyalties are tested as love, envy, and power collide within the scheme.
Gilbert de Rezel (Frank Latimore)
Lorenza’s romantic interest who becomes entangled in the political machinations. His pursuit of Lorenza collides with the broader deception at court.
Dr. Mesmer (Charles Goldner)
A physician whose hypnotic techniques empower Cagliostro but later become the key to exposing him. Represents the tension between science and manipulation.
Viscount de Montaigne / Montagne (Stephen Bekassy)
A mastermind behind the plot, embodying the ruthless political scheming of the era and driving the conspiracy against the Queen.
Marie Antoinette (Nancy Guild)
The queen at the center of the deception, whose reputation and position are challenged by the impersonation scheme and the resulting scandal.
King Louis XV (Robert Atkins)
The aging monarch whose death reshapes the court’s dynamics and accelerates the political maneuvers surrounding the palace.
Learn where and when Black Magic (1949) takes place. Explore the film’s settings, era, and how they shape the narrative.
Time period
Late 18th century
The story unfolds during the waning years of the Ancien Régime, around the time of Louis XV's death and Marie Antoinette's rise to queen. It mirrors the era's grand spectacles, fashion, and scandal, culminating in a courtroom confrontation.
Location
France, Europe
Set in 18th-century Europe with a focus on the French royal court. The opulent settings, political maneuvering, and courtly intrigue provide the backdrop for Cagliostro's rise and the Diamond Necklace-inspired plot.
Discover the main themes in Black Magic (1949). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
🪄
Manipulation
Cagliostro exploits hypnotic powers and charisma to bend others to his will, using illusion to gain wealth and influence. The narrative examines how persuasion and charm can mask true intentions and corrupt moral boundaries.
💘
Love and Jealousy
Romantic ties entangle Lorenza, Zoraida, and Gilbert, fueling jealousy and shifting loyalties. The emotional stakes are heightened by manipulation, making love a tool within political scheming.
💎
Power and Reputation
The plot centers on reputation at the court and the vulnerability of the monarchy to scandal. Ambition and intrigue threaten Marie Antoinette's standing, illustrating how wealth, status, and perception influence governance.
🧭
Deception and Identity
Impersonation and disguise drive much of the action, with Lorenza impersonating the Queen and Cagliostro shaping identities to serve a larger scheme. The line between truth and fabrication is continually blurred.

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Discover the spoiler-free summary of Black Magic (1949). Get a concise overview without any spoilers.
The film opens in the glittering yet precarious world of the late‑18th‑century French court, where lavish fêtes hide a simmering undercurrent of ambition, superstition, and whispered dissent. The camera drifts through gilded salons and shadowed alleyways, establishing a setting that feels both sumptuous and subtly menacing, as if every chandelier could cast a spell and every whispered promise might tip the balance of power.
At the centre of this swirl is Joseph Balsamo, a young gypsy boy whose early hardships give way to an uncanny fascination with the unseen forces of the mind. Over the years he adopts the flamboyant persona of Count Cagliostro, a charismatic hypnotist whose talents blur the line between scientific curiosity and occult mastery. His magnetic presence draws aristocrats and outcasts alike, and his growing reputation hints at a far‑reaching agenda that could reshape the very fabric of the kingdom.
Around him move a cast of equally compelling figures. Dr. Mesmer, a pioneering physician, offers a rational veneer to the mysteries Cagliostro exploits. Madame du Barry, the king’s celebrated mistress, navigates the treacherous currents of influence with poise and hidden motives. Lorenza, an alluring and determined woman, becomes enmeshed in the hypnotist’s orbit, while Gilbert, a steadfast protector, watches the unfolding tension with guarded loyalty. Zoraida, a passionate confidante, adds another layer of jealousy and rivalry. All of them operate beneath the looming presence of King Louis XV and the rising influence of Marie Antoinette, whose courts become the stage for a subtle battle of wills.
The tone of Black Magic is a rich blend of historical grandeur and psychological intrigue, drenched in chiaroscuro lighting that mirrors the era’s flirtation with enlightenment and darkness. The story promises a spellbinding dance of power, desire, and illusion, inviting the audience to wonder just how far a single hypnotist might go when he sets his sights on a kingdom built on both reverence and fear.
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