Examples from the Web for underplot
But the signs and footprints of their underplot are evident.Abraham Lincoln, A History, Volume 2|John George Nicolay and John Hay
But however that may be, Endymion certainly had a peculiar fascination for him; we may even detect borrowings from the underplot.John Lyly|John Dover Wilson
I fly, madam; but how will you disengage yourself from the affair with Underplot?Three Hours after Marriage|John Gay
There is an underplot, far from moral in its character, which ends in the marriage of Belfond junior.A History of Caricature and Grotesque|Thomas Wright
Underplot, un′dėr-plot, n. a plot under or subordinate to the main plot in a play or tale: a secret scheme, a trick.