Vampire in Venice

Professor Paris Catalano (Christopher Plummer) travels to Venice to investigate the last known appearance of the famous vampire Nosferatu during the carnival of 1786. He is summoned there by the young Princess Helietta Canins, who believes that the vampire may be interred in a sealed tomb in the basement of her ancestral estate. Catalano notices that Helietta bears a striking resemblance to Nosferatu's long-lost love, Letizia. A séance at the house awakens Nosferatu from his 200-year sleep, and he escapes from his tomb.