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 "excerpt": "Night of the Bloody Apes (La horripilante bestia humana) is a 1969 Mexican horror film by René Cardona, remaking his Doctor of Doom; a gorilla-heart transplant turns a surgeon's son into a killer beast.",
 "snippet": "Night of the Bloody Apes (La horripilante bestia humana) is a 1969 Mexican horror film by René Cardona, remaking his Doctor of Doom; a gorilla-heart transplant turns a surgeon's son into a killer beast.",
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 "markdown": "# Night of the Bloody Apes\n\n**Night of the Bloody Apes** (Spanish: *La horripilante bestia humana*, literally 'The Horrible Man-Beast') is a Mexican horror picture from 1969, helmed by René Cardona on a script he wrote together with his son René Cardona Jr., telling of a surgeon who gives his dying son a gorilla's heart and thereby transforms him into a murderous hybrid creature.<sup>[10](https://www.imdb.com/title/tt0063090/)</sup> It was released in Mexico on February 6, 1969, and reached the United States in 1972 under its English title in a recut, dubbed version.<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup>\n\n| Key fact | Detail |\n|---|---|\n| Original title | *La horripilante bestia humana* ('The Horrible Man-Beast')<sup>[10](https://www.imdb.com/title/tt0063090/)</sup> |\n| Release | February 6, 1969 (Mexico); 1972 in the United States, recut and dubbed<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup> |\n| Running time | 81 minutes (Mexico); 83 minutes (US dubbed version)<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup> |\n| Director and writers | René Cardona; screenplay and story by René Cardona and René Cardona Jr.<sup>[11](https://eofftv.com/la-horripilante-bestia-humana-1968/)</sup> |\n| Production | Cinematográfica Calderón S.A.; produced by Guillermo Calderón and Alfredo Salazar<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup> |\n| Lead cast | José Elías Moreno (Dr. Krallman), Carlos López Moctezuma (Goyo), Armando Silvestre (Lt. Arturo Martínez), Norma Lazareno (Lucy Osorio), Agustín Martínez Solares (Julio Krallman), Gerardo Zepeda (the monster)<sup>[2](https://www.imdb.com/title/tt0063090/fullcredits/)</sup> |\n| Relationship to earlier work | A remake of Cardona's own 1962 film *Doctor of Doom* (*Las Luchadoras contra el medico asesino*)<sup>[11](https://eofftv.com/la-horripilante-bestia-humana-1968/)</sup> |\n\n## Spoilers\n\n### Plot\n\nDr. Krallman, a prominent surgeon, has a son, Julio, who is dying of a severe heart infection; one review describes the illness as leukemia.<sup>[3](https://www.tvguide.com/movies/night-of-the-bloody-apes/cast/2000350112/)</sup><sup> • </sup><sup>[4](https://moriareviews.com/horror/night-of-the-bloody-apes-1969.htm)</sup> Krallman and his deformed assistant Goyo steal a gorilla from the zoo and transplant its heart into Julio.<sup>[4](https://moriareviews.com/horror/night-of-the-bloody-apes-1969.htm)</sup> The operation succeeds, but the young man transforms into an ape-like hybrid creature that escapes the laboratory and goes on a rampage through the city at night, attacking and killing women.<sup>[3](https://www.tvguide.com/movies/night-of-the-bloody-apes/cast/2000350112/)</sup><sup> • </sup><sup>[4](https://moriareviews.com/horror/night-of-the-bloody-apes-1969.htm)</sup> Krallman attempts a second operation to remedy his mistake, but it comes too late, and Lieutenant Arturo Martínez is assigned to stop the creature.<sup>[3](https://www.tvguide.com/movies/night-of-the-bloody-apes/cast/2000350112/)</sup>\n\n### Content and style\n\nThe film mixes genres and footage types. It opens with a women's wrestling match in which the wrestler Lucy Osorio injures her opponent, a subplot the reviewer describes as largely abandoned afterward; it also splices footage of actual open-heart surgery into the transplant scenes, alongside nudity and gore.<sup>[5](https://horrorcritic.com/night-of-the-bloody-apes-reviewed-by-lisa-marie-bowman/)</sup><sup> • </sup><sup>[8](https://retrofilmvault.com/listings/night-of-the-bloody-apes-1969-2/)</sup> The monster is played by Gerardo Zepeda, who is credited as \"Monstruo\".<sup>[2](https://www.imdb.com/title/tt0063090/fullcredits/)</sup> The Moria review observes that the plot, in which a scientist places a gorilla's heart into his son's body and produces an ape creature that kills women, had changed little in sophistication or science from *[Murders in the Rue Morgue](https://www.edgepedia.org/murders-in-the-rue-morgue)* (1932) thirty-seven years earlier.<sup>[4](https://moriareviews.com/horror/night-of-the-bloody-apes-1969.htm)</sup>\n\n## Production and release\n\nThe film was produced by Cinematográfica Calderón S.A., shot in color by cinematographer Raúl Martínez Solares, edited by Jorge Bustos, and scored by Antonio Díaz Conde.<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup> Azteca Films Inc. distributed it theatrically in Mexico in 1969.<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup>\n\n**The American version.** Jerand Film Distributors Inc. released the film in the United States in 1972 as *Night of the Bloody Apes*, recut with added footage and dubbed into English; Iver Film Services handled a UK theatrical release.<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup> A reviewer of the dubbed version describes its editing as notably ragged, and notes that American distributors were known for roughly editing foreign-language films, while Cardona himself was known as an uneven filmmaker.<sup>[5](https://horrorcritic.com/night-of-the-bloody-apes-reviewed-by-lisa-marie-bowman/)</sup> A Spanish-language film database records that the original 81-minute Mexican version was initially distributed cut of its gore and nudity scenes, and credits Jerald Intrator as director of the US version.<sup>[6](https://cinelocurasconc.blogspot.com/2015/01/la-horripilante-bestia-humana-1969.html)</sup>\n\nThe film circulated under several other titles, including *Gomar: The Human Gorilla* and *Horror y sexo* (a racier version) in Mexico, and *Korang, la terrificante bestia umana* in Italy.<sup>[1](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)</sup><sup> • </sup><sup>[7](https://www.ihorrordb.com/titles/2029/night-of-the-bloody-apes)</sup>\n\n## Place in Mexican horror cinema\n\nThe [British Film Institute](https://www.edgepedia.org/british-film-institute)'s survey of Mexican macabre cinema cites *La Horripilante bestia humana* alongside *El vampiro* (1957) and *Más negro que las noche* (1975) as examples of how distinct the periods of Mexican horror film history are, with each period carrying specific and often quite different styles; the three films, it notes, have very little in common other than their country of origin.<sup>[9](https://www.bfi.org.uk/features/where-begin-with-mexican-macabre-cinema)</sup> Cardona (1905–1988) was a prolific Mexican director of some 145 films, many in exploitation categories, and a leading figure in the masked-wrestler genre.<sup>[4](https://moriareviews.com/horror/night-of-the-bloody-apes-1969.htm)</sup>\n\n## References\n\n1. [Night of the Bloody Apes, The Grindhouse Cinema Database](https://grindhousedatabase.com/index.php/Night_of_the_Bloody_Apes)\n2. [Night of the Bloody Apes (1969) full cast and crew, IMDb](https://www.imdb.com/title/tt0063090/fullcredits/)\n3. [Night of the Bloody Apes full cast and crew, TV Guide](https://www.tvguide.com/movies/night-of-the-bloody-apes/cast/2000350112/)\n4. [Night of the Bloody Apes (1969), Moria, The Science Fiction Horror and Fantasy Film Review](https://moriareviews.com/horror/night-of-the-bloody-apes-1969.htm)\n5. [Night of the Bloody Apes, reviewed by Lisa Marie Bowman, HorrorCritic](https://horrorcritic.com/night-of-the-bloody-apes-reviewed-by-lisa-marie-bowman/)\n6. [Con eze de sine: La horripilante bestia humana (1969)](https://cinelocurasconc.blogspot.com/2015/01/la-horripilante-bestia-humana-1969.html)\n7. [Night of the Bloody Apes (1969), iHorrorDB](https://www.ihorrordb.com/titles/2029/night-of-the-bloody-apes)\n8. [Night of the Bloody Apes 1969, RetroFilmVault](https://retrofilmvault.com/listings/night-of-the-bloody-apes-1969-2/)\n9. [Where to begin with Mexican macabre cinema, BFI](https://www.bfi.org.uk/features/where-begin-with-mexican-macabre-cinema)\n10. [Night of the Bloody Apes, imdb.com](https://www.imdb.com/title/tt0063090/)\n11. [La horripilante bestia humana (1968) - EOFFTV - The Encyclopedia of Fantastic Film and Television](https://eofftv.com/la-horripilante-bestia-humana-1968/)\n\n---\n*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Films and standalone screen works › Individual films by title and year › Horror films (individual works) › Monster and creature films*\n\n*Initially written Oct 3, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 21, 2026; Oct 25, 2026; Nov 1, 2026 · Last review: Oct 25, 2026*\n\n*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*\n\nLicense: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license\n",
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 "speakable": "Night of the Bloody Apes is a 1969 Mexican horror film by René Cardona, remaking his Doctor of Doom; a gorilla-heart transplant turns a surgeon's son into a killer beast."
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