Desc: Ultus and the Three-Button Mystery: Directed by George Pearson. With Aurelio Sidney, Manora Thew, Charles Rock, Alice De Winton. Having made a daring escape from the Old Bailey, Ultus becomes involved in the case of the kidnapping of a Cabinet Minister by the agents of a Foreign Power, aided by faithful assistant Dick and the star-struck Elsie Meredith. But Elsie's role is not to be quite what she expects...