Rachel, an absolute source of frustration—a wonderful, frustrating experience. My Cousin Rachel comes from director Henry Koster, with a screenplay by Nunnally Johnson based on Daphne du Maurier’s novel. It features Richard Burton, Olivia de Havilland, and Audrey Dalton. Franz Waxman composed the music, and Joseph LaShelle was in charge of cinematography. The story quickly introduces Burton as Philip Ashley, an introspective Englishman who is upset to learn that his respected guardian has died from poisoning by Rachel Sangalletti (de Havilland). Later, when Rachel appears at the Ashley family home overlooking the cliffs, Philip struggles between trying to determine if he should dislike her and succumbing to a deep infatuation. It’s an excellent example of dark, Gothic storytelling; Koster's direction is as capable as ever, carefully presenting elements of mystery and intense feelings. The central question—whether Rachel is truly guilty of murder—remains unclear throughout the film, with the script intentionally leaving hints that could support either possibility. The location perfectly sets the stage for psychological conflict and romantic turmoil, with the cliff-top house shrouded in darkness, the sea below observing events with a combination of threatening waves and peaceful calmness. Waxman’s dramatic musical score adds to the overall atmosphere, and the strong performances complement the intelligence of the source material, resulting in a technically impressive film. The uncertainty becomes somewhat wearing by the end—the final moments are lackluster and an unsatisfying conclusion—but it's still a movie that is easy to become immersed in. To be transported to Ashley Mansion and spend time with talented actors makes for a rich experience. 7.5/10

Source on TMDB