A princess is torn between her royal obligations and her love for a handsome Frenchman.

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.

Paul Vanderkill is extraordinarily wealthy because his grandfather happened to buy farmland in what was to become Midtown Manhattan. The Loveland Dance Hall is one of the tenants of the Vanderkill estates. To reassure his aunt Sophie, Vanderkill visits Loveland to determine whether it is as disreputable as Sophie suspects. There he meets a dime-a-dance girl, Madeleine MacGonagal, who charms him with her quaint proletarian accent. They begin a secret affair, which turns into a secret marriage when pregnancy ensues. When the baby fails to survive, Madeleine decides that since he had married her only for the baby's sake, she should make haste to Mexico to secure a divorce. There she meets Panama Canal Kelly, a former suitor who now owns a silver mine. Her plans for divorce and quick remarriage are complicated when Vanderkill arrives to confront her.

A young opera singer finds her career stalled because of her cold and passionless performances, until she finds romance with a handsome admirer.