The scheming aunt and uncle of William Judd, heir to the family fortune, persuade him to pose as Napoleon at a fancy masquerade ball, but they are actually having him committed to an insane asylum. Since all the other inmates/attendees think they are historical figures such as Robin Hood, the Duke of Wellington, Paul Revere, William Tell, Salome, Robinson Crusoe, Sherlock Holmes and others, it takes a while for Judd to separate the wheat from the chaff and prove he is not deranged. His quest becomes more urgent when he falls in love with a nurse named Josephine, who does not think she is Napoleon's "Josephine" but is convinced Judd thinks he is Napoleaon.
as William 'Napoleon' Judd
as Nurse Josephine
as Wellington
as Paganini
as Robin Hood
as Salome
as William Tell
as Paul Revere
as Dr. Hayden
as Mrs. Bixby
as Mr. Bixby