Among her contemporaries Bette Davis is the only one I know who managed to carry off playing twin sisters twice in films. The first time was in A Stolen Life and in 1964 she did it again in Dead Ringer. The first time she was a good and a bad twin, but in Dead Ringer both twins commit evil acts during the course of the movie.
Bette's former co-star Paul Henreid directed her in Dead Ringer with co- stars Karl Malden and Peter Lawford. Back in the day one twin stole the man the other was in love with because he was rich, prosperous, and part of old California society. That one got rich, the other never married and now lives owning a bar that she's way behind in debt with.
When the husband dies the bar owner learns that back in the day he was tricked into marriage with a false pregnancy story and as the family was Catholic he married her and couldn't divorce. That sets the bar owner into a murderous frenzy and she kills the widow and then assumes her place while she also fakes a suicide story.
With a few bumps along the way Bette settles into the other Bette's life. Then a lowlife boyfriend played by Peter Lawford comes back in the picture. Lawford is a gigolo/golf pro and he and society Bette have some deep secrets. The rest you can see for yourself.
Oddly enough A Stolen Life also involved a twin taking another's place and as for the rest of the story, if you know what happens in The Postman Always Rings Twice you know what happens here.
With the possible exception of Whatever Happened To Baby Jane, Dead Ringer maybe Davis's best film of the Sixties. She throws herself into both roles so well that it like watching twins in action. She also has a nice group of supporting players in roles they are well cast in. But this one is Bette's show.
Watch her steal another life.