Ricky (Desi Arnaz) and Fred (William Frawley) want to go to a boxing match, but Lucy (Lucille Ball) and Ethel (Vivian Vance) want to go to a nightclub.
Meanwhile, Ricky is in a similar situation, having burned his "little black book" upon marrying Lucy (she had told him that doing this was an American marriage tradition).
Finally, Ricky decides to phone a friend, Ginny Jones, who has connections to all the women in town.
The doorbell rings, and it is Lucy and Ethel, dressed in stereotypical hillbilly attire, and calling themselves "Eunice" and "Ma," respectively.
Ricky takes Fred aside, fills him in, and they turn the tables on the women by being overly amorous.