Richard Walters is condemned to death for a murder he claims not to have committed. He arrives on death row just before a brutal inmate leads the other convicts in a violent uprising. Walters gets caught up in the riot, while on the outside his friends are trying to find evidence of his innocence.
In London, a secret society led by lawyer Thaddeus Merrydew collects the assets of any of its deceased members and divides them among the remaining members. Society members start dropping like flies. Sherlock Holmes is approached by member James Murphy's widow, who is miffed at being left penniless by her husband. When Captain Pyke is shot, Holmes keys in on his mysterious Chinese widow as well as the shady Merrydew. Other members keep dying: Malcom Dearing first, then Mr. Baker. There is also an attempt on the life of young Eileen Forrester, who became a reluctant society member upon the death of her father. Holmes' uncanny observations and insights are put to the test.
A power company floods a sleepy Tennessee Valley for a dam to run a hydraulic power plant. Garry, a Northern engineer on the project, falls in love with Caroline, Colonel Bradford's adopted daughter.
