Edgar Wallace (1875–1932) is an English writer, playwright, screenwriter, and journalist. A contemporary of Arthur Conan Doyle, who surpassed his creator of the very “Sherlock Holmes” in popularity in his time. Edgar Wallace is one of the best-known English authors of the detective genre.
In London, murders are happening, and for every corpse there is a key on a metal chain. The keys are identical. It turns out that before his death, Lord Selford handed out keys to a certain coveted door to seven people. Which of them decided to reach the inheritance alone?