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Nightmare
- Bliain: 1964
- Tír: United Kingdom
- Seánra: Thriller, Horror, Mystery
- Stiúideo: Hammer Film Productions
- Eochairfhocal: dreams, nightmare, father murder, suicide attempt, asylum, girls' boarding school, psychological thriller, girls' school
- Stiúrthóir: Freddie Francis
- Caitheadh: David Knight, Moira Redmond, Jennie Linden, Brenda Bruce, George A. Cooper, Irene Richmond