A Stolen Life is a 1946 drama film starring Bette Davis, who also produced, and directed by Curtis Bernhardt. The supporting cast includes Glenn Ford, Dane Clark, Walter Brennan, Charles Ruggles, and Bruce Bennett formerly Herman Brix. The movie is a remake of a 1939 British film Stolen Life starring Elisabeth Bergner and Michael Redgrave.
Kate focuses on her work with artist Karnock Dane Clark, but rejects his romantic overtures. Bill eventually goes to Chile, allowing Kate to spend some time with her sister and learn that the marriage is in trouble. When they go sailing, Pat is washed overboard and drowns. Kate is washed ashore, and, when she regains consciousness, she is mistaken for Patricia.Bill is about to return, so Kate decides to assume her late sisters identity. Bill is angry at Pats many affairs and in no mood to continue the marriage. Freddie Charles Ruggles has guessed the truth and insists that Kate must reveal to Bill her real identity. When she does, Bill realizes that Kate is the one he truly loves. ........
Source: Wikipedia