The long-watched-for mummy arrives at the museum. The professor is so elated. Meanwhile, his niece is being entertained by her beau, whom he strongly objects. Hearing her uncle is coming, she has Harry climb into the davenport. Her aunt and uncle enter and the latter speaks about the mummy. Harry, who is suffocating, begins to yell; the professor is alarmed and looks around. Slowly the lid of the davenport raises and Harry peeks out; the professor discovers him and yanks him out. He orders him out of the house. The college boys play a joke on the professor. They bind Mabel and substitute her for the real mummy. Arriving at the mummy's case the professor is surprised to learn that the mummy is alive; she walks out to him and soon is making love to him. He leaves the room to get a drink. She immediately exits. Returning, the professor is alarmed to find his mummy gone; he runs to the street. Meantime, his daughter has removed her disguise and she and her friends are talking in her home....
Moving Picture World synopsis