Pregnant Lucy insists on being in a barbershop quartet skit at the club with Ricky and the Mertzes.

When Lucy's pregnancy cravings and preoccupation with a baby shower leave Ricky frustrated and overwhelmed, he begins to develop psychosomatic pregnancy symptoms of his own. A doctor advises Lucy and Ethel to give Ricky some special attention as a cure, so the women ask Fred to organize a men-only "daddy shower" for him. When Fred calls it a "stag party" in front of Lucy, curiosity gets the best of her and she must find a way to sneak into the event.