Sorely bedraggled blood thrall Willie Loomis tries to tell his master, vampire Barnabas Collins, that his plans for well-meaning governess Vicki Winters are unlikely to come to fruition. Barnabas wants Vicki to volunteer to become his vampire bride, a goal he has done remarkably little to advance. Even when Vicki invited herself to spend the night in his house, he couldn’t be bothered to bite her. Now she’s getting serious about her depressing boyfriend, Burke Devlin, and Willie thinks Barnabas has missed his chance.
Barnabas responds to Willie’s opinion as we might expect- he grabs him by the throat and threatens to kill him. He sends him away with orders to follow Vicki and Burke on their date and to report on every detail of their conversations.
Mad scientist Julia Hoffman is trying to cure Barnabas of his vampirism, and she brings him substantially the same message, along with a command to leave Vicki alone. Barnabas has enough hope that Julia’s experiments will succeed that he can’t treat her as he does Willie. So he evades her questions, pouts at her orders, and sulks when he finds himself having to go along with her.

The scene looks very much like the interactions we saw in the early months of the show between matriarch Liz and her brother, high-born ne’er-do-well Roger. Those were sometimes echoed in the interactions Vicki had with her charge, Roger’s son strange and troubled boy David. The bossy big sister/ bratty little brother pattern is on its way to becoming the signature relationship of Dark Shadows.
Meanwhile, Willie has been following his orders. He saw Burke and Vicki make several laughably awkward attempts to kiss each other, then heard Burke propose marriage to Vicki. Vicki asked for time to think it over.
When Willie reports this to Barnabas, he says he is sure she will say yes. Barnabas says that there will be no marriage, and proclaims “Burke Devlin must die!”