To a reception there is invited a celebrated professor of hypnotism, and during the evening he obliges with an exhibition of his wonderful powers. Several of the guests are put under the influence and made to perform most ridiculous antics, to their embarrassment upon reviving. The daughter of the host is the last to be subjected to the professor's power, and she proves to be such a good subject that the professor at once resolves to make her his unconscious agent in a dastardly plot he at once evolves.