Someone at the Door(1936)

When Sally inherits a country house, her young brother Ronald, an aspiring journalist, hits on a sensational way to make his first big scoop: Sally will 'disappear', and he will be arrested for her murder! At his trial she will reappear, his acquittal will follow, and he will be able to supply his paper with an exclusive story. Sally and her fiance, Bill, fall in with the scheme. However, there are complications which they had not foreseen.