"Men are nothing but a bunch of messcats," insists Lucy Ricardo, while Ricky insists that "a man's home is his castle." To make a point, Lucy divides the apartment in half, so that Ricky can be as messy as he likes on his side. But when Ricky's press agent, Kenny Morgan, lines up a publicity spread in Halfbeat Magazine, Lucy decides to teach her sloppy husband a lesson by turning the Ricardo apartment into a regular pig pen. Little does Lucy know that this photographer is not from the musician's journal, but is actually from Look magazine.

An item in the morning gossip column prompts Lucy to assume that Ricky is seeing another woman, namely Rosemary, one of his dancers. To keep an eye on Ricky, Lucy manages to wangle her way into the chorus line of "Jezebel" at Ricky's club and upstages Rosemary during the number. Later that night, Ricky tells Lucy that there was a "strange girl" in the chorus-ugly, and a terrible dancer. He knew it was Lucy all along. They kiss and make up.