Henry is expecting the new cook and when Sally, his wife's sister, appears, he immediately shows her the kitchen and orders her to serve food. When Henry's wife learns this she fears to present him as her husband, commands him to masquerade as the butler and calls in a friend to pose as her husband. The "butler" puts soap into the soup with the result that the sister-in-law and the other man become ill. When fire breaks out in the house the sister-in-law is trapped in her room and Bill thinks the terrible heat he feels is the result of fever from his illness. The fire brings on a climax in which the fire department performs and a series of hilarious gags are introduced.