A woman pretends to be her own twin sister to win back her straying husband.
Greta Garbo
as Karin Borg Blake
Melvyn Douglas
as Lawrence 'Larry' Blake
Constance Bennett
as Griselda Vaughn
Roland Young
as Oscar 'O.O.' Miller
Ruth Gordon
as Ruth Ellis
Robert Sterling
as Dick 'Dickie' Williams
Frances Carson
as Miss Dunbar
Gloria DeHaven
as Debutante in Ladies' Room (uncredited)
Robert Alton
as Cecil (uncredited)
William Bailey
as Nightclub Patron (uncredited)
Olive Blakeney
as Phyllis (uncredited)
Lulu Mae Bohrman
as Nightclub Patron (uncredited)