The working class twin sister of a callous wealthy woman impulsively murders her out of revenge and assumes the identity of the dead woman. But impersonating her dead twin is more complicated and risky than she anticipated.
Bette Davis
as Margaret DeLorca / Edith Phillips
Karl Malden
as Sergeant Jim Hobbson
Peter Lawford
as Tony Collins
Philip Carey
as Sergeant Hoag
Jean Hagen
as Dede Marshall
George Macready
as Paul Harrison
Estelle Winwood
as Dona Anna
George Chandler
as George, Chauffeur
Mario Alcalde
as Garcia
Cyril Delevanti
as Henry, the Butler
Monika Henreid
as Janet
Bert Remsen
as Daniel 'Dan' Lister, Bartender
