Source: Web-Rip 480p. In the 1780s, after an evening of illegal gambling, two of the participants fight a duel in which the wronged party is killed by a villain, who has just cheated to win a newly built house at Hyde Park Corner from him. Officer Cheatle of the Bow Street Runners is able to arrest those present for gambling, but is unable to prove that a murder has occurred. A hundred and fifty years later, the Officer's great-grandson, Constable Cheatle, is intrigued by reports of another murder at the same house at Hyde Park Corner.