A woman and her lover are tortured and killed by her sadistic husband. The pair return from the grave to seek vengeance.


Mario Caiano (as Allen Grünewald, Allan Grunewald)


Mario Caiano (story, screenplay and dialogue), Fabio De Agostini (story, screenplay and dialogue)





Complete credited cast:
Barbara Steele ... Muriel Arrowsmith / Jenny Arrowsmith (as Barbara Steel)
Paul Muller ... Dr. Stephen Arrowsmith (as Paul Miller)
Helga Liné ... Solange
Marino Masé ... Dr. Dereck Joyce (as Lawrence Clift)
Giuseppe Addobbati ... Jonathan, the Butler (as John McDouglas)
Rik Battaglia ... David


A sadistic count tortures and murders his unfaithful wife and her lover, then removes their hearts from their bodies. Years later, the count remarries and the new wife experiences nightmares and hauntings. The ghosts of the slain return to exact their bloody revenge, until their hearts are destroyed. Written by io

Plot Summary | Plot Synopsis


A mad, sadistic scientist on the loose! See more »




Unrated | See all certifications »

Parents Guide:

View content advisory »

Did You Know?


Director Mario Caiano stated that Nightmare Castle was born out of his passion for actress Barbara Steele and the Gothic genre, a style which he began to love between 1943 and '44 when he first read Edgar Allan Poe's work. Caiano said that he was not influenced by director Mario Bava, and did not remember seeing his films at the time with the possible exception of Black Sunday (1960). See more »


Dr. Stephen Arrowsmith: [to Muriel Arrowsmith] I've asked you before not to come down to my laboratory while I'm busy with my experiments.
See more »

Alternate Versions

The uncut dubbed version is called "Night of the Doomed", and runs 97m. See more »


Featured in 100 Years of Horror: Girl Ghouls (1996) See more »


Amanti D'Oltretomba
Composed by Ennio Morricone
See more »

User Reviews

Mediocre horror film aided by good acting. Has shades of Riccardo Freda's/Mario Bava's I Vampiri aka The Vampires.
7 March 2019 | by Fella_shibbySee all my reviews

I first saw this in the 80s on a rented vhs. Revisited it few days back. The film is about a scientist (Paul Muller) who tortures his wife (Barbara Steele) n her lover after catchin em red handed with the aid of his old n haggard maid (Helga Liné, much more attractive than Steele). The torturous punishment is only an excuse. The real motif is to usurp's the wife's property n spend time with the maid who turns very young n attractive after a blood transfusion. Told ya. Things turn bad for the scientist as the wife informs him that she had made her step sister (Barabara Steele in a double role) the nominee of the property.....

The isolated castle with its huge rooms appeared eerie, the atmosphere towards the end with the rainfall n the acting were the only good aspects. The ending seemed rushed, the ghosts weren't spooky, there is implausibility which will make one scratch their head n the stupidity shown/done by a scientist is beyond belief.

3 of 3 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 59 user reviews »

Frequently Asked Questions

See more »






Release Date:

5 July 1966 (USA) See more »

Also Known As:

Nightmare Castle See more »

Company Credits

Production Co:

Cinematografica EmmeCi See more »
Show more on IMDbPro »

Technical Specs


Sound Mix:


Aspect Ratio:

1.66 : 1
See full technical specs »

Contribute to This Page

Recently Viewed