Lady Windermere's Fan (1925)

Mrs Erlynne, the mother of Lady Windermere--who doesn't know about her--wants to be introduced in society so that she can marry Lord Augustus Lorton. Lord Windermere, who helped her with a cheque, invites her to his wife's birthday party, but Lady Windermere thinks she has reason to be jealous, so she decides to leave her husband and go to Lord Darlington, who is pining for her. Mrs Erlynne finds this out and tries to prevent this mistake, but her daughter leaves her fan in Lord Darlingtons residence.