Patsy Douglas (Betsy Drake) comes up with an ingenious way to get a seat on the crowded New York City Subway: she pretends to have a baby, using a doll discarded by the advertising agency where she works. One day, however, her agency's primary client, short-tempered Cyrus Baxter (Edmund Gwenn), happens to be seated beside her. (His chauffeur had abruptly quit after Baxter berated him for getting stuck in a traffic jam.) He is delighted when he overhears that she named her "child" Cyrus after him. He becomes acquainted with her, letting her assume that he works for Baxter as a watchman.