1947 film by Fritz Lang
Secret Beyond the Door is a 1947 American psychological horror thriller film and a modern updating of the Bluebeard fairytale, directed by Fritz Lang, produced by Lang's Diana Productions, and released by Universal Pictures. The film stars Joan Bennett and was produced by her husband Walter Wanger. The black-and-white horror drama is about a woman who suspects her new architect husband plans to kill her.
Plot summary adapted from Wikipedia, licensed under CC BY-SA 4.0.