
Out of jail for a crime she did not commit, Madelon turns to prostitution and thievery to send her illegitimate son to medical school.
Does The Sin of Madelon Claudet have end credit scenes?
No!
The Sin of Madelon Claudet does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The Sin of Madelon Claudet, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Cliff Edwards
Victor Lebeau

Karen Morley
Alice

Charles Winninger
Photographer

Lewis Stone
Carlo Boretti

Frank Reicher
Arresting Detective (uncredited)

Frankie Darro
Larry Claudet - as a Boy (uncredited)

Helen Hayes
Madelon Claudet

Neil Hamilton
Larry Maynard

Alan Hale
Hubert

Jean Hersholt
Dr. Dulac

Marie Prevost
Rosalie

Halliwell Hobbes
Roget

Virginia Sale
Charity Ward Nun (uncredited)

Russ Powell
Claudet

Lennox Pawle
St. Jacques
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Challenge your knowledge of The Sin of Madelon Claudet with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.
Which actress portrays the title character, Madelon Claudet?
Helen Hayes
Karen Morley
Marie Prevost
Jean Hersholt
Show hint
Read the complete plot summary of The Sin of Madelon Claudet, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Alice [Karen Morley] decides to leave her doctor husband Dr. Lawrence Claudet [Robert Young]. Her escape plan is interrupted by her friend and physician Dr. Dulac [Jean Hersholt], who chooses to slow her impulse and instead shares the life story of Madelon Claudet [Helen Hayes], a French-born woman whose turbulent path unfolds against a backdrop of love, loss, and resilience.
In Madelon’s tale, she is drawn into a romance with American artist Larry Maynard [Neil Hamilton], who persuades her to run away with him. Maynard returns to the United States to tend to his ailing father, but once there he betrays Madelon and marries a woman chosen by his parents. Unaware of the deeper consequences, Maynard never returns to claim her, and Madelon discovers she has given birth to a son. Her world tightens around necessity and pride as her father [Russ Powell] urges her to marry Hubert [Alan Hale], a farmer, to provide a stable home for her child. When Madelon refuses to surrender her illegitimate son, Hubert and her father abandon her, leaving her to navigate a harsh new reality on her own.
Madelon’s precarious position leads her to become the mistress of Count Carlo Boretti [Lewis Stone], a man whose charm masks danger. Her close friends Rosalie [Marie Prevost] and Victor Lebeau [Cliff Edwards] help care for the boy while she balances the fragile line between social judgment and survival. Yet Carlo’s luck runs out when he is arrested as a jewel thief and, facing ruin, dies by suicide. Madelon is convicted as his accomplice and sentenced to ten years in prison, despite her innocence.
When she is released in 1919, Madelon seeks out her teenage son, Lawrence, now at a state boarding school. A conversation with the school’s doctor reveals the grim truth: because his father was a criminal, Lawrence’s prospects for steady, respectable work are limited. Determined not to become a perpetual burden to her son, Madelon resolves to finance his medical education, but the postwar economy makes every step difficult. A cruel misunderstanding—someone mistaking her for a prostitute—forces her to return to the only means she knows to survive, and as she ages, theft and light crime become part of her daily life. Yet her ultimate aim remains clear: her son must have a chance at a better future, and she fights to secure that future for him, even as the world degrades around her.
As the years pass, Madelon’s appearances fade and her freedoms shrink, but the dream of Lawrence’s success persists. Finally, Lawrence earns his medical degree, a triumph that feels almost within reach for Madelon—until the weight of her sacrifices becomes profoundly personal. Destitute and weary, she contemplates entering state charity, but she cannot bring herself to abandon the bond she forged with her son. She visits him one last time, presenting herself as a patient and leaving with a lingering sense of hope. In a twist of fate, Dr. Dulac recognizes her, and he and his friend Dr. Claudet—unaware of who she truly is—are moved to provide for her. The revelation of her identity is never fully spoken aloud, but her sacrifice resonates with those around her, including Alice Claudet, who suggests to Lawrence that Madelon be invited to live with them.
The story Dr. Dulac shares slowly reframes the idea of loyalty, endurance, and the cost of living a life cut by circumstance. Through Madelon’s relentless pursuit of her son’s future, the narrative explores not only personal redemption but also the quiet, steadfast acts of compassion that can ripple across a family. As the tale closes, the bridge between past and present feels sturdy—built by the quiet insistence of a mother who never stopped fighting for the chance to belong, to contribute, and to see her child thrive.
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