The Unspeakable Gentleman is a novel written by John P. Marquand. The story revolves around a wealthy and mysterious man named Monty Brewster, who is known for his extravagant lifestyle and questionable business dealings. Despite his reputation, Brewster is charming and charismatic, which draws the attention of a young journalist named Roger Grant.As Grant begins to investigate Brewster, he uncovers a web of deceit and corruption that threatens to...