Overwhelmed by the responsibilities of motherhood, Lucy (Lucille Ball) decides to hire a maid named Mrs. Porter (Verna Felton). In preparation for her new servant's arrival, Lucy meticulously prepares a list of do's and don'ts to help Mrs. Porter perform her job more efficiently. Imagine our heroine's surprise when Mrs. Porter imperiously descends upon the Ricardo household with her own list of what she expects Lucy to do -- and not do. And imagine Lucy's agony when she can't summon up the nerve to fire the overbearing maid, who within a few hours of her arrival has completely taken over the Ricardo household. This episode marks the first appearance of twin infants Richard Lee Simmons and Ronald Lee Simmons as Little Ricky.