Sherlock Holmes and Doctor Watson get involved with Balkan terrorists to save Emperor Franz Joseph I of Austria from an assassination at the opera house and prevent World War I.

Engelbert Humperdinck and Morgan Fairchild are the unlikely star duo in Even Angels Fall. Humperdinck plays an author, specializing in Harlequin-type romances. His first of several mistakes is to move into an apartment where the previous tenant died mysteriously. Who will be next?