Ethel was to be married and father had figured the expense down to the last cent and really couldn't see how he was to meet it. Those things didn't bother son any and he and his chum helped themselves plentifully to wines and other good things, and were only restrained after father had kicked them out of the kitchen. Uncle John had arrived for the wedding and was temporarily staying away from his club and card games. About this time a burglar scare is started in the neighborhood and the family becomes worried about the wedding presents. George, the son, and Billie, the sister of the bride-to-be, decide to use a novel burglar alarm and go to a nearby store, where they purchase a quantity of flypaper. This they distribute around the house and especially around the wedding presents. Uncle John had wind of a very interesting card game, and while pretending to retire early, in reality he sneaks away to the club. Ethel and Billie retire and all seems peaceful. Uncle John, returning from the club, is held up and his watch, to which was attached his keys, taken by the robber. Rather than disturb the household, Uncle John gains admittance through the window and becomes helplessly entangled in the fly paper. His efforts to release himself arouse George, who, gun in hands, descends the stairs, encountering much flypaper on the way. In the dining room he encounters Uncle John, whom he supposes to be a burglar, and a fight ensues. The noise arouses father, mother, Billie and Ethel, who descend to the dining room. A policeman is attracted and arrives in time to prevent any tragedy. When Uncle John is finally relieved of his fly paper mask, the two youthful geniuses, Billie and George, are severely spanked.