Irritated because he is known merely as the director of his wife Lucy's pictures, Paul Robaix decides to go to Japan and make an art film starring an unknown geisha in the title role of Puccini's Madama Butterfly. The outraged Lucy, accompanied by producer Sam Lewis, follows Paul to Japan and disguises herself as a geisha. When Paul sees her in a tea house and fails to recognize her, she assumes the name of Yoko Mori, takes lessons from Kazumi, a real geisha, passes a screen test and becomes Paul's new discovery. Complications arise when her wolfish leading man, Bob Moore, falls in love with her and asks Paul to help him win Yoko's hand. Shortly before filming is completed, Paul accidentally discovers the deception. Deeply hurt, he feels Lucy has deprived him of his one chance to win recognition without her support. But when Madama Butterfly premieres in Tokyo, Lucy, now wise in the ways of a geisha, appears as herself and tells the applauding audience that Yoko Mori has entered a convent and retired from the screen. She then proudly introduces her husband and gives him the entire credit for the picture.