British Professor Paris Catalano travels to
Venice to investigate the whereabouts of the infamous vampire
Nosferatu, whose last known appearance was 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 believes that the vampire is searching for a way to end his immortal torment and actually be dead. Upon his arrival, Catalano notices that Helietta bears a striking resemblance to Nosferatu's long-lost love, Letizia. The Canins hold a
séance at the house against the warnings of their
Catholic priest, Father Don Alvise. The séance causes Nosferatu to awaken from his 200-year sleep, and escapes from his tomb. Nosferatu roams Venice, soon locating Helietta's mother, Princess Catalano, and forces her out of her balcony, pushing her to her death below where she is impaled on an iron fence. During the elder princess's funeral, Catalano warns Helietta that Nosferatu can only be stopped by legitimate love. During a subsequent carnival celebration, Nosferatu stalks Helietta. He soon follows her home, and awakens her in her bed, seducing her. Meanwhile, Helietta's younger sister, Maria, witnesses part of the encounter. The following morning, Helietta awakens and informs Catalano that Nosferatu has visited her. Later, in an alley, Nosferatu attacks Uta Barneval, the wife of Father Alvise's peer, Dr. Barneval, and chases her into an abandoned building, where he feasts on her blood. Nosferatu later approaches Catalano, Father Alvise, and his peer, Dr. Barneval, inside a castle. Barneval attempts to shoot Nosferatu, but Nosferatu quickly regenerates and proceeds to break Barneval's shotgun. Catalano attempts to repel Nosferatu with his Holy Cross, but Nosferatu burns his hands while holding it before taking Helietta and leaving the castle. Despondent, Catalano packs his bags and leaves the Canins' mansion, announcing that only a pure woman willing to give Nosferatu her true love can destroy him. Subsequently, Catalano, who was dying of an unspecified illness, commits suicide by jumping from a bridge into the
Grand Canal. Maria, who is seeking to fight Nosferatu so she can save her sister's soul, climbs to a tower and jumps to her death in an attempt to catch Nosferatu's attention. Nosferatu saves Maria from the fall and abducts her, taking her with him to an abandoned
villa. Nosferatu explains to Maria that he wishes to die, but to do so, a
virgin woman has to give herself to him and love him unrepentantly, which Maria accepts. Meanwhile, Barneval, looking for his missing wife, travels to the villa with two friends. In the basement, they find what appears to be Nosferatu asleep in a coffin. When they drive a stake through his heart, however, his appearance morphs to that of Uta Barneval; they have in fact killed Uta, who had
shapeshifted to appear as Nosferatu. Upstairs, they locate the real Nosferatu in bed with Maria. Barneval ineffectively shoots him, and the shot goes through Nosferatu's back, severely injuring Maria. Nosferatu, enraged, kills Barneval's friends. While fleeing the villa, Barneval is lured into a garden by Helietta. Posing as Helietta, Nosferatu seduces Barneval before revealing that he had shapeshifted into her, and killing Barneval while showing his true form. Nosferatu leaves the villa with a nude Maria in his arms, walking along a Venice canal. Dying, Maria asks Nosferatu to turn her into a vampire. He apparently refuses, saying that doing so would be an eternal punishment, the same he has endured for centuries. They hold each other while Nosferatu keeps walking, and they eventually disappear in the morning mist, leaving both of their fates a mystery. == Cast ==