Sis is deeply impressed by the lecture of Prof. Spark Plug, the hypnotist, and she prevails on her butler admirer to purchase a copy of the professor's book, "The Power of the Eye." Sis practices before her mirror in the Overwork home, where she is maid, until she decides that she is some "hipponotist." Her employer, I.B. Overwork, has finally given way under the strain and returns home at mid-day to rest. He mixes a much-needed sleep potion for himself and after sipping of it sits down to rest. Sis enters and tries out her hypnotic ability. The sleeping potion gets in its work about the same time and Overwork goes off to the land of dreams. The over-curious butler sips a little of the sleep potion as he listens to Sis's boasting of her ability and when she shows how she did it he too falls in a trance. It's a great day for Sis until she discovers that she can't wake the pair up and then there is a great commotion before matters are straightened out.
—Moving Picture World synopsis