Lord Illingworth, a cynical _roué_, has, in his youth, betrayed a too trusting young lady, who, in consequence, gave birth to a son, by her named Gerald. When the play begins this young fellow is nineteen years old, and has, most hopelessly it would seem, fallen in love with an American heiress whose name is Hester Worsley. He is living with his mother, called Mrs Arbuthnot, at a quiet country village, where also resides Lady Hunstanton, who acts as hostess to all the smart Society folk who appear upon the scene, and among whom Lord Illingworth is the most prominent. His lordship, ignorant of their real relationship, has taken a fancy to Gerald, and offers him a private secretaryship. Whereupon his future prospects brighten up considerably. But when Mrs Arbuthnot discovers that Lord Illingworth is no other than the man who had wronged her, she does all in her power to persuade her (and his) son to refuse the offer, and, driven to extremity in her distress, tells Gerald her own history, as that of another woman. Her efforts are futile. The boy only says that the woman must have been as bad as the man, and that, as far as he can see, Lord Illingworth is now a very good fellow, and so he means to stick to him. Consequently, when his lordship insists upon Gerald keeping to the bargain, and reminds his mother that the boy will be her "judge as well as her son," should the truth of her past be brought to light, Mrs Arbuthnot is induced to hold it still secret. Unfortunately for this secret, Mrs Allonby, one of Lady Hunstanton's guests, has goaded Lord Illingworth into promising to kiss Miss Hester Worsley. This he does, much to the disgust of the fair Puritan, who loudly announces that she has been insulted. Gerald's eyes are suddenly opened to Lord Illingworth's turpitude, and with the unbridled passion of the headstrong lover cries out that he will kill him! Which, apparently, he would have done, had not Mrs Arbuthnot stepped forward, and to everybody's surprise intervened with the dramatic: "No--he is your father!" _Tableau._ In the final act Hester Worsley, now that she knows Mrs Arbuthnot, and is determined in spite of all to marry Gerald, solves every difficulty by carrying off the mother and son to her home in the New World, where we may presume the young couple marry, and live happily ever afterwards. Before her departure from England, however, Mrs Arbuthnot, maddened by the cynical offer of tardy reparation by marriage on the part of Lord Illingworth, strikes him across the face with a glove, and at the end of the play alludes to him as "a man of no importance"; which balances his earlier description of her as "a woman of no importance."