Photographer Glen Cannon [Gene O'Shane] and his fiancée, model Liz Arden [Barbara Bishop], arepleased to find that Glen has inherited Falconroc Castle after the deathof his uncle Thomas. Unfortunately, Falconroc is already inhabited by anold couple--Count Charles Townsend [Alex D'Arcy] and his wife [Paula Raymond] -- who have been renting the castle for over 60 years. Glen isn't looking forward to dispossessing theTownsends of their longtime home.Actually, Count Townsend is none other than Count Dracula, and he andhis wife like Falconroc. Their retarded and disfigured strongman Mango [Ray Young]catches young girls, and their butler George [John Carradine] (whom they saved from thenoose when he was convicted of sacrificing victims to the great god Luna)chains the girls in the basement and extracts blood for the Townsends todrink. Now that their old friend JohnnyDavenport (Robert Dix], who has a problem in that heturns into a psycho killer during the full moon, has broken out of prisonand made it to Falconroc, life is really looking up. The Count has nointention of moving.What Glen and Liz discover when they arrive at Falconroc is a veryrefined and impeccably dressed couple who look much younger than theiryears. The Count explains that he simply took over the lease at the deathof his father. When the Count gets around to asking whether Glen wouldconsider selling Falconroc and Glen refuses because Liz is looking forwardto living there, the Count turns to Johnny, who promises to think up someway of doing away with the new owners.Liz and Glen spend the night at Falconroc, but Liz is awakened whenshe hears a woman screaming. She wakes up Glen and forces him to find outwhat's going on, even though Glen thinks it's just a family spat orsomeone using an electric toothbrush that short-circuited. The scream camefrom downstairs, so they light a candlabra and head for the cellar. Whenthey run into Mango, they retreat. Then they encounter George, whoexplains that the screams were made by a pet toucan.The next morning, Liz and Glen go for a swim in the ocean[interesting, since Falconroc is in the middle of the Arizona desert].When Liz and Glen return to the castle, Johnny informs them that the fuelline on their car is damaged and that a mechanic will take a look at ittomorrow morning. Consequently, Liz and Glen are invited to dine with theTownsends that evening.In the meantime, Liz wants to take a look at the noisy toucan, so sheand Glen head down to the cellar. They are horrified to find three girlsin chains. Even more horrifying is when they find the Townsends in thenext room, asleep in coffins. As they back out of the Townsends' bedroom,they turn to find Johnny, George, and Mango behind them. The three thugscapture Glen and Liz and place them in chains. Then George awakens theTownsends and reminds them that tonight is the full moon and the night ofthe sacrifice. The Countess informs Ann [Vicki Volante], one of the chained girls, thatshe is to be the sacrifice, and the Count tells George to draw up a billof sale for the castle. They then all go upstairs to begin thepurification ritual.Two rats and a tarantula come crawling around Liz and Ann, which setsthem to screaming, so Johnny comes back down into the cellar. He releasesAnn and tries to convince her that he's only pretending to be theTownsends' friend and that he's really going to try to help her get freebecause she reminds him of a girl that he almost married. When he startsto tell her about the girl and takes Ann into his arms, Ann pushes himaway and screams. Johnny slaps her, but he is stopped by George whoinforms Johnny that he can never become one of the eternal ones if heviolates the sacrifice.The full moon has risen, and the band of torch-carrying worshipperswith Glen and Liz among them, walk along the beach to a hill where Ann istied to a stake and wood for a bonfire has been piled at her feet. Georgemouths an offeratory, they light the bonfire, and the fire consumes Ann.The ceremony over, everyone returns to the castle. Mango takes the twoextra girls back to the cellar while George prepares to serve dinner.First, they drink a toast to the great God Luna. Liz and Glen notice thegun sticking out of Johnny's pants. Liz tosses her drink in Johnny's face,and Glen grabs the gun. He shoots Johnny through the heart, effectivelyputting him out of commission. George slinks out of the room, leaving theTownsends alone, facing Glen's gun. Glen passes the gun to Liz and ties upthe Townsends using the sashes from their robes. Then Glen goes afterGeorge. George has run down to the cellar where he grabs a bullwhip andtries to stop Glen. Unfortunately for George, when he takes a swing atGlen with a mace, he accidentally falls down the cellar stairs and isknocked out.Meanwhile, back upstairs, the Townsends struggle at their ties butcan't get free. Glen comes bounding up the stairs, much to Liz's relief.It's almost dawn, and the Townsends plead to be put in their coffins. Glenrefuses. As Glen and Liz watch, the Townsends turn to dust, and two batsfly out the window.Downstairs, Mango has discovered George's body. He takes the mace andgoes upstairs only to find the Townsends turned to dust and Johnny dead.Mango advances on Liz and Glen. They run outside. Mango follows. Glen andLiz run up the side of a hill, Liz stumbles, Mango punches Glen andcarries off Liz, kicking and screaming, to the site of last night'ssacrifice. Mango ties Liz to the stake, pours gasoline on her, and lightsa torch. Glen finds an ax laying next to a woodpile and plunges it intoMango's back. He then pours gasoline on Mango and sets him on fire. Mangocrawls to a cliff and falls to the rocky beach below. [Original Synopsis by bj_kuehl]