Once upon a time, Endora made a deal with another witch Carlotta that Samantha will marry her son Juke, but Samantha hasn't lived up to her part of the deal. Now Carlotta and Juke are back and Carlotta will stop at nothing to give Juke what he wants. She makes Darrin disappear and never brings him back until Samantha agrees to marry Juke.

Moving into middle age, Darrin begins to notice those human physical imperfections in himself associated with aging. Despite Samantha's assertions that Darrin isn't vain, Endora believes otherwise. As such, she, without Samantha or Darrin's knowledge, places a spell on him to make him vain, more specifically in a youthful manner.