Director: Miguel Morayta (The Bloody Vampire 1961)
Producer: Internacional Sono Film S.A. / Tele Talia Films
Score: Luis Hernandez Breton
Writer: Miguel Morayta
Director of photography: Raul Martinez Solares
In a small village in the 16th century, mysterious deaths occur on the night of the full moon near the Lagoon of Death. Although the local priest and the villagers are mystified by several sudden deaths, one resident, Doctor Alvaran (Rafael Del Rio), an expert on vampires, is certain the deeds are the work of the respected Count Frankenhausen (Carlos Agosti), who lives in a castle with his beautiful daughter, Brunhilde (Erna Martha Bauman), who is the spitten image of her dead mother. Heck, she even has the same name! The villagers scoff when Alvaran tries to convince them that Count Frankenhausen is really a vampire, and that the Count's only salvation is an injection of clamic acid extracted from the roots of the mandragora tree. Hildegard (Bertha Moss), Count Frankenhausen's loyal servant, consistently sabotages Alvarans' attempts to thwart her master. Alvaran goes to the castle and meets Brunhilde, who refuses to believe that her father is a bloodsucker who uses his influence on her (even though Alvaran finds her wandering around the lagoon in a hypnotic trance). He explains that not even driving a stake in the Count's heart could prevent the Vampires from marching on the castle. The only solution is to inject Frankenhausen with the acid. The doctor finds his way to the secret laboratory of Frankenhausen and surprises him. The Count immediately turns into a huge bat with big ears. After a fierce fight, Alvaran flings a stake at Frankenhausen and pins the bat-figure to the wall. As Alvaran had warned the villagers, a mob of Vampires immediately rises from their graves (with stakes sticking out of their chests), attack the villagers, and proceed towards the castle. Can Doctor Alvaran give the Count the juice in time before the Vampires take over?
- Precursor to "The Bloody Vampire". According to Mexican film historian David Wilt, "The Bloody Vampire" and "Invasion Of The Vampires" were shot back-to-back in December 1961-January 1962. "The Bloody Vampire" was released in September 1962, and the sequel, "Invasion Of The Vampires" was released the following summer. - The film was re-edited and dubbed for the US by K. Gordon Murray. - In this movie, garlic isn't adequate to fight the threat of the vampires - some other plant takes its place: a potion ("Clammic Acid") is concocted, which returns the dead to their human form and dispels the vampire threat.