Son Of Dracula (1943)

Hungarian Count Alucard, a mysterious stranger, arrives in the
U.S. invited by Katherine Caldwell, one of the daughters of New
Orleans plantation owner Colonel Caldwell. Shortly after his
arrival, the Colonel dies of apparent heart failure and leaves
his wealth to his two daughters, with Claire receiving all the
money and Katherine his estate "Dark Oaks". Katherine, a woman
with a taste for the morbid, has been secretly dating Alucard and
eventually marries him, shunning her long-time boyfriend Frank
Stanley. Frank confronts the couple and tries to shoot Alucard,
but the bullets pass through the Count's body and hit Katherine,
seemingly killing her. A shocked Frank runs off to Dr. Brewster,
who visits Dark Oaks and is welcomed by Alucard and a living
Katherine. The couple instruct him that henceforth they will be
devoting their days to scientific research and only welcome
visitors at night. Frank goes on to the police and confesses to
the murder of Katherine. Brewster tries to convince the Sheriff
that he saw Katherine alive and that she would be away all day,
but the Sheriff insists on searching Dark Oaks. He finds
Katherine's dead body and has her transferred to the morgue. Dr.
Brewster is shown reading the novel Dracula.


Meanwhile, Hungarian Professor Lazlo arrives at Brewster's house.
Brewster has noticed that Alucard is Dracula spelled backwards
and Lazlo suspects vampirism. A local boy brought to Brewster's
house confirms this suspicion—there are bite marks on his neck.
Later, the Count appears to Brewster and Lazlo but is driven away
by a cross. Vampiric Katherine enters Frank's cell as a bat and
starts his transformation. After he awakens, she tells him she
still loves him. She explains that she only married Alucard (who
is really Dracula himself) to obtain immortality and wants to
share that immortality with Frank. He is initially repulsed by
her idea, but then yields to her. After she explains that she has
already drunk some of his blood, she advises him on how to
destroy Alucard. He breaks out of prison, seeks out Alucard's
hiding place and burns his coffin. Without his daytime sanctuary,
Alucard is destroyed when the sun rises. Brewster, Lazlo, and the
Sheriff arrive at the scene to find Alucard's remains.


Meanwhile, Frank stumbles into the playroom where Katherine said
she would be. He finds her coffin and gazes down at her lifeless
body. Knowing he must kill the love of his life, Frank takes off
his ring and puts it on Katherine's left ring finger. Once
Brewster and the others reach the room, they see Frank appear at
the door. He steps back allowing them to follow. As they enter
the room, they see Katherine's burning coffin. They all stare,
speechlessly, while Frank mourns the loss of his love.