This classic is based on a play and book by Mary Roberts Rinehart. The movie is an annotated version and contains factoids and information about further resources to learn more about the movie, the author, and the stars. It also contains information about the historical context in which the movie and book are based. Annotated movies are a project of the Llano County Library of Texas.

Movies are only the beginning. They can be used to spark discussions and research on historical, cultural, and ethical questions.