Episode: The Case of Magruder's Millions. The immensely rich but wheelchair-bound Malcolm Magruder invites Holmes and Watson to his country estate in order to investigate the death of an associate. However, a plot is afoot: members of Magruder's staff are replaced, Magruder himself is imprisoned in a room, and an imposter takes over. The fake Magruder plans to sell the entire estate and divide the proceeds among the conspirators. When Holmes and Watson arrive the conspirators attempt to get them to leave, but Holmes, sensing something is not right, insists on seeing "Magruder".