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Silvio Steno (Matheson Lang) is an actor who also manages the theater company that includes his wife Simonetta (Hilda Bayley). While Silvio buries himself in his work, his wife feels neglected. Silvio's best friend Andrea (Ivor Novello) takes a liking to the lonely wife, but Simonetta only wishes to be friends. When her brother Lelio (Clifford Gray) sees his sister and Andrea together on the Grand Canal, he threatens to tell Silvio if she does not give him money. Silvio is called to the deathbed of his mentor when he and Simonetta attend a carnival ball. The husband learns of his wife's alleged indiscretion, and a worried Simonetta flees on the next train. During the staging of Othello Simonetta plays Desdemona and Silvio takes the murder scene too seriously. The curtain goes down and stagehands must wrestle him away from his wife to prevent her strangulation. After the play, Simonetta asks to be alone with her husband and begs Silvio's forgiveness