A mysterious woman appears at the front door of the Old House on the great estate of Collinwood. She introduces herself to the master of the house, old world gentleman Barnabas Collins, under the name Leona Eltridge. The door opens further and we see that Leona is accompanied by Frankenstein’s monster Adam. She tells Barnabas that she has come to donate her “life force” to an experiment meant to create a bride for Adam. Barnabas has many questions, none of which Leona will answer. Adam orders Barnabas to find mad scientist Julia Hoffman and ushers Leona to an upstairs bedroom.
There, Adam tells Leona that he doesn’t know any more about her than Barnabas does. She tells him that he doesn’t need to know more, and reminds him that they must not let Barnabas or Julia know that they met for the first time this night. Moreover, no one must know that she has any connection with suave warlock Nicholas Blair.
Julia shows up with occult expert Timothy Eliot Stokes. Barnabas tells them about Leona, and Adam enters, demanding she start the experiment at once. Julia goes to the basement laboratory, and Stokes goes to question Leona.
Leona tells Stokes that she was in love with Adam’s creator, the late Dr Eric Lang. She also claims to be suffering from a terminal illness, and to have only a short time before she will die a painful death. She therefore wants to continue Lang’s work, and has no fear of the danger involved in the experiment.
Stokes, Julia, and Barnabas all regard Leona’s story as, in Julia’s words, “too pat and sentimental” to be true, but they have little choice but to comply with Adam’s demands. In fact, we know that Leona is really Danielle Roget, an eighteenth century homicidal maniac whom Nicholas conjured up yesterday. Nicholas himself has developed a crush on Maggie Evans, The Nicest Girl in Town, which puts the lie to his pretense to be a stranger to human emotions. That Nicholas thinks anyone who knew the fiendish Lang would believe Danielle/Leona’s sappy story suggests that he might be an even bigger softie than his attraction to the magnificently wholesome Maggie would indicates.
Stokes figures out how the name “Eltridge” is spelled, which somehow means that he must hurry off to work on something or other. In the basement, Julia directs Danielle/Leona to the donor’s table. She offers her a painkiller, which she refuses. Adam watches the experiment. When Danielle/Leona flatlines, Julia pronounces her dead and says that the experiment has been a failure. Adam tells Barnabas and Julia that he ought to kill them. Barnabas disagrees. Before they can explore the issue in any depth, the Bride comes to life and Adam cheers up.
The opening voiceover says that if Barnabas realized that Danielle/Leona was “one of the living dead,” his reaction would be terror. Barnabas was himself a vampire for 172 years, so you might think he would be happy to meet someone with whom he had so much in common, but maybe not.
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