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A remake of Wife, Husband and Friend (1938), Everybody Does It is a frantic satire of the opera world. Businessman Paul Douglas is forced to suffer in silence when his wife (Celeste Holm) decides to become an opera star. Compelled to bankroll a concert for his missus, Douglas meets genuine opera diva Linda Darnell at the concert. While passing the time, Darnell discovers that Douglas in fact has a magnificent singing voice. Partly because he is flattered by Darnell's attentions, and partly to show up his wife, Douglas embarks on his own operatic career. But on the night of his debut, Douglas suffers a severe attack of stage fright, gets "doped up" on medicine in order to survive the performance, and hilariously humiliates himself in front of everyone. Darnell l angrily stalks out of the scene, and the sadder-but-wiser Douglas and Celeste Holm return to each other's arms.