- HD 1080
- Runtime: 90m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: William Castle
- Stars: Ronald Lewis, Audrey Dalton, Guy Rolfe, Oskar Homolka, Vladimir Sokoloff
- keywords: mask, leech, grave, castle, baron, flashback, torture, masked man, disfigured face, disfigurement, 19th century
- Production_studio: William Castle Productions, Columbia Pictures
- Slogan: During the running of the film,the "Punishment Poll" lets YOU decide the fate of Mr. Sardonicus!
- providers: FlixFling
- The Mr. Sardonicus is featured in the top rankings of 1961
- #12 in Top Mystery Movies of 1961
- #11 in Top Horror Movies of 1961
In 1880, Sir Robert Cargrave, a London physician known for his experimental work in paralysis treatment, is summoned to Gorslava by the mysterious Baron Sardonicus—who is now married to Cargrave's former wife, Maude—to treat his disfigurement. When Cargrave arrives, he finds the masked baron is a cruel sadist who has threatened to harm Maude if he is not successfully cured.
