In this romantic comedy, a popular actress disguises herself as a Japanese geisha to land a part in a film directed by her husband. Shirley MacLaine stars as Lucy Dell, a comic actress married to equally successful director Paul Robaix (Yves Montand). Though Paul has found success creating comic vehicles for Lucy, he wants to expand his range by making a lavish adaptation of Madame Butterfly on location in Japan, using a local actress as the star. Lucy feels she can play the part just as well as any Japanese woman, and, with the help of the film's producer (Edward G. Robinson), she hatches a plot to prove it. She poses as Yoko Mori, an innocent young geisha on her way to joining a convent, and her husband is immediately determined to cast her. Of course, the masquerade proves more difficult than imagined, and things become especially complicated when Lucy's Hollywood playboy co-star (Robert Cummings) falls in love with her demure Yoko persona. Opting for mild, character-driven humor over farce, My Geisha provides a few knowing jibes at Hollywood and comfortable performances from MacLaine and Montand, but the film's treatment of Japanese culture will likely seem dated to modern audiences.