The Masquerader is a 1917 play by the American weiter John Hunter Booth.
[1] It was based on the 1904 novel The Masquerader by Katherine Cecil Thurston.
A leading British politician chooses to swap places with his cousin, a journalist who is his doppelganger.
This leads to a dilemma for his wife who falls in love with the double.
In 1933 a sound version The Masquerader was made starring Ronald Colman in the title role.