THE KISS OF THE VAMPIRE

Gerald and Marianne Harcourt are a couple honeymooning in early 20th-century Bavaria when their car runs out of petrol. They stop in a small village and opt to stay at the local inn until a cart arrives with more petrol. They accept a dinner invitation from Dr. Ravna, who introduces them to his children Carl and Sabena.

At a costume ball at Ravna's chateau, Gerald and Marianne are separated from each other. Donning a mask identical to Gerald's in order to impersonate him, Carl silently leads Marianne to an upstairs bedroom, where Dr. Ravna, a vampire, bites her. Gerald becomes concerned about Marianne's whereabouts, but Sabena gives him a drugged drink which renders him unconscious. Ravna is the leader of a vampire cult which intends to induct Marianne as a member.

When Gerald awakes, Carl insists that he was travelling alone and that Marianne was never in the chateau. The innkeeper, Bruno, supports Carl's story, and the police say that Dr. Ravna's standing in the community is too respected to investigate his chateau. Only the hard-drinking savant Professor Zimmer, who lost his daughter to the cult, acknowledges Marianne's existence and agrees to help. He advises Gerald that the cult will not be able to complete Marianne's transformation into a vampire until the following night, and prepares an arcane ritual using the Seal of Solomon that he can use to destroy the vampires once Marianne is freed.

Gerald knocks at the chateau's front door and knocks out the guard when he answers. He breaks into Sabena's bedroom and enlists her help in finding Marianne, but she betrays him to Ravna. Ravna has Gerald tied up and demonstrates to him that they have already brainwashed Marianne into embracing the cult and renouncing her love for Gerald. As Sabena scratches Gerald's chest as foreplay to a vampiric bite, he surreptitiously slips his bonds, then uses blood from the scratch to draw a cross on his chest. The vampires reel from the cross, giving Gerald the opportunity to subdue Marianne and escape. The cult searches the grounds for them, but Zimmer provides a distraction which allows Gerald to topple a pillar on the guard.

Back at the inn, Zimmer says he knows Bruno only denied Marianne's existence for fear that the cult would harm his daughter, and compels him to bring the local priest to cure Marianne. As Zimmer works on the ritual, Gerald checks on Marianne and finds she has left, having been mystically summoned by the cult. The cult realizes that Zimmer will not destroy them so long as Marianne is with them. Gerald and the priest catch up to Marianne and tackle her to the ground. Zimmer's arcane ritual is completed, releasing a swarm of vampire bats which swarm over the vampires, draining them of their blood. As the vampires die, Marianne is freed of their spell.

Professor Zimmer completes a ritual, unleashing a swarm of vampire bats that destroy Dr. Ravna and his cult, freeing Marianne from their control.

The climax turns classic vampire lore against its perpetrators: an arcane ritual triggers nature itself—here, a lethal swarm of bats—to annihilate the cult rather than relying on the standard stake or sunlight trope. This resolution underscores both the persistence of evil in quaint settings and the power of outsider intervention, as Zimmer’s knowledge and Gerald’s resolve triumph where the locals will not act. Marianne’s liberation is both literal and symbolic, breaking the cult’s psychological and supernatural grip.