A political prisoner in a South American dictatorship escapes and is pursued throughout the country by a bloodthirsty dog.


(as Antonio Isasi)


(screenplay), (screenplay) (as Antonio Isasi) | 1 more credit »


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Cast overview, first billed only:
Aristides Ungria
Omar Romero
Yolanda Farr ...
Francisco Casares ...
Abraham Abatti
Eduardo Calvo ...
Manuel de Blas ...
Mayor Araes
Antonio Gamero ...
Luis Gaspar
Juan Margallo ...
Cuatrero (as Francisco Margallo)
Vicente Cuesta ...
Miguel Rellán ...
(as Miguel Angel Rellan)
Luis Marín ...
Preso (as Luis Marin)


A political prisoner in a South American dictatorship escapes and is pursued throughout the country by a bloodthirsty dog.

Plot Summary | Add Synopsis


Adventure | Drama


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Release Date:

2 December 1977 (Spain)  »

Also Known As:

A Dog Called... Vengeance  »

Company Credits

Production Co:

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Technical Specs

Sound Mix:



Aspect Ratio:

1.66 : 1
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Did You Know?


The footage of persecution in the reedbed was shot in Tajo River, near Madrid. See more »


Featured in Grindhouse Universe (2008) See more »


Tema de El perro
Performed by Ángela Carrasco
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User Reviews

Stirring and exciting thriller about an escaped convict and chased by a brutal dog in an interminable pursuit
27 October 2016 | by (Santander Spain) – See all my reviews

A man called Arístides Ungria (Jason Miller) escaping from his imprisonment in a South American dictatorship , pursued by the Beast that will haunt him and destroy those around him until he ultimately confronts his destiny at a deadly duel . The desperate fugitive chased by a cruel warden (Francisco Casares) defends himself against the nasty dog that is severely beaten , running from the past , pursued by a cruel animal , the beast that stops at nothing to carry out the order to kill . Aristides hits strongly the dog (a well trained and non-mistreated German Shepherd) and is left for dead but comes back ever stronger , with long fangs and jaws and a single-minded bloodlust . The protagonist goes home living a woman (Yolanda Farr) and her daughter and the dog continues attacking , but circumstance again gives him an opportunity for freedom , which he takes , solely he still encounters himself being pursued by the terrible animal . The dog goes after him and will cross hundred miles to get to him . Aristides attempts to arrive the city where thinks encounter his sweetheart named Muriel (Lea Massari , this role was firstly offered Jean Seberg but she turned it down , that's why the looking for a dog took long time) . Meanwhile , he recalls his past on relationship with her and to getaway he disguises as a priest (like in ¨The Exorcist¨ starred by Miller as the exorcist reverend and directed by Friedkin) . He travels across a desolate landscape to the big town in search of his wife , being relentlessly chased by a doomed dog possessed of an ancient evil that will not die until it has devoured the heart and possessed the soul of its prey . Arístides Ungria is helped by the besieged resistance formed by a brave group of freedom fighters (Marisa Paredes , Antonio Mayans , José Vivó , Manuel De Blas) . Finally , Ungria will confront a heinous officer (Aldo Sambrell) and the gruesome dog .

This is a moving story about pursuits , including a political denounce about South American dictatorships ; dealing with a violent tale of a convict on the run , a prisoner in South America who manages to escape and is chased throughout the country by a bloodthirsty dog . A chase across a landscape of terror where there is no friend , no refuge , no respite from merciless violence and cruelty , there is only the hunter and the hunted . Jason Miller stars as the hapless prisoner , he is acceptable and his action scenes are well played . The mythic secondary from Spaghetti Western , Aldo Sambrell , is good as the sadistic villainous , as always . The structure film is pretty plain and simple , but concerns about the relentless pursuit and fighting among a fugitive and a savage dog following his footsteps . This first version develops a political intrigue with dictatorship , a dictator called Leónidas , included a resounding message . Atmospheric cinematography by Juán Gelpi , shot on location in hydraulics constructions as Bolarque , Entrepeñas , Buendía , Ataza and Madrid and Miranda , Caracas , Venezuela . Including a nice cinematographer work , using subjective camera , filmed under dog viewpoint . Adequate and suspenseful musical score by Antón Garcia Abril who formerly composed the famous soundtrack of the ¨Templar Zombies¨ films directed by Amando De Ossorio . And adding a wonderful song sung by Angela Carrasco .

The picture is based on a novel with same title by successful Spanish author , an adventure expert and prolific author called Alberto Vazquez Figueroa who gets numerous cinematic adaptations , such as : ¨Manaos¨ , ¨The Iguana¨ , ¨Ocean¨ , ¨The Last Harem¨, ¨Oro Rojo¨ , ¨El Perro¨ and ¨Rottweiler¨ . As it was remade in 2004 as ¨Rottweiler¨ with similar plot , as political prisoner in a dictatorship escapes and is pursued throughout the country by a bloodthirsty dog reinforced with modern technology . This new adaptation is an extremely violent film with noisy action , stirring thriller and lots of blood and gore . Being directed by Brian Yuzna and stars William Miller , Irene Montalà , Paulina Gálvez , Lluís Homar and Paul Naschy .

The director was defending his name and career , but also his money in more ways than one , as he was one of the producers investing in the project and it achieved a big hit smash at Spanish box office . Antonio Isasi Isasmendi is a good professional , a craftsman who has directed several films in diverse genres , as adventures and , especially , action , such as : ¨The dog¨ 1979 , 1972 ¨Summertime Killer¨ , 1968 ¨Las Vegas, 500 millions¨ , 1963 ¨The mask of Scaramouche¨ , 1958 ¨Rapsodia De Sangre¨ . "El Perro¨ results to be a surprisingly solid little film , including some action scenes very skillfully staged . Decent action/thriller is worth trying . This is a movie that's both entertaining and enlightening . Certainly worth watching if you're in the mood for something other than typical exploitation fare .

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