Liza is characteristically careless, so her husband plans to scare some sense into her. He phones an actor friend to make up like a notorious crook and rob the house. The friend agrees and sets out in his disguise. In the meantime, Lefty and his pal, Katie, attempt to really rob the house, and Liza, who has overheard her husband's plan, gives him a very nice reception. She fixes a fine lunch and insists upon giving the thief all her jewelry. When the actor arrives he meets the other real criminal and a fight ensues. The actor is knocked out. Then the master of the household comes home and Frank beats him up as he thinks the reception that he has received is the fault of John. Then there is a general mix-up, and for half an hour there is no telling who is a crook and who is not. But at last the real crooks, in an attempt to get away, are caught by the police and the mystery is cleared up.
—Moving Picture World synopsis