- HD 1080
- Runtime: 91m.
- Status: Released
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- Languages: en
- Country: United Kingdom, United States of America
- Director: Viktors Ritelis
- Stars: Michael Gough, Yvonne Mitchell, Sharon Gurney, Simon Gough, Nicholas Jones
- keywords: incest, overbearing father, dream sequence, patricide, country cottage, disappeared corpse, murdered husband
- Production_studio: Abacus Productions, London-Cannon Films, The Cannon Group
- providers: MGM Plus
- The Crucible of Horror is featured in the top rankings of 1971
- #55 in Top Thriller Movies of 1971
- #51 in Top Horror Movies of 1971
A mother and daughter hatch a scheme to murder their family's domineering and sadistic patriarch.