Dead Ringer (also known as Who Is Buried in My Grave?) is a 1964 American psychological thriller made by Warner Bros. It was directed by Paul Henreid from a screenplay by Oscar Millard and Albert Beich, from the story La Otra by Rian James, previously filmed in a Mexican version starring Dolores del Río. The soundtrack is by André Previn and the cinematography by Ernest Haller. The film stars Bette Davis, Karl Malden, and Peter Lawford, with Philip Carey, Jean Hagen, George Macready, Estelle Winwood, George Chandler, and Cyril Delevanti.

Plot

For 18 years, identical twin sisters Margaret and Edith have been estranged from each other. It started when Margaret faked a pregnancy to "steal" Edith's fiancé, Francesco "Frank" DeLorca, a rich American military officer both sisters dated during World War II. They meet at the funeral of Frank, whom both sisters mourn. Margaret will be secure for the rest of her life thanks to her husband's fabulous wealth, but Edith's prospects are dismal. Her business, a cocktail lounge, is losing money, and she is threatened with eviction for not paying her bills. Edith plans revenge against Margaret, phoning her to come to her room above the bar so that they might settle their score. Soon after Margaret arrives, Edith shoots her, then swaps clothes with the corpse, framing Margaret's murder as her own suicide. She then takes over the DeLorca mansion by assuming Margaret's identity. But the mansion's servants start to become suspicious.