Bloody '70s Horror Double Feature: Mary, Mary, Bloody Mary / Rene Cardona's Blood Feast

Mary, Mary, Bloody Mary -A beautiful American artist named, Mary, who just so happens to be a vampire living in Mexico, has authorities baffled and in full investigation, after her lust for blood has left a trail of bodies across the country. Attempting to elude detection by the authorities, Mary tries to maintain a love relationship with an American ex-patriot, while still trying to satisfy her growing appetite and need for 'human sustenance.' Things become even more complicated and terrifying for Mary, when her vampire father comes on the scene. Wrought with his own heinous compulsions, her father is determined to stop his legacy, before it totally consumes his daughter, and he intends to do this, even if it means killing her.

Blood Feast -Hugo, a twisted, cat lover, who also collects weapons and other macabre objects as a pastime, uses another pastime of picking up and scoring with beautiful women, as a means to sustain his massive horde of the animals. The routine is, once Hugo brings the women home with him and he is done with them, his mute and creepy butler, Dorgo, takes over. At some point, Dorgo, slips up and angers Hugo, with this ending in Dorgo having a similar fate as the women. Hugo soon finds himself at the mercy of his angry horde, when his efforts to rid himself of his latest conquest are foiled