Eagle Rock: An Ashe Cayne Novel, Book 4 - Ian K. Smith

Billionaire Elliott Kantor, who ruled over a mammoth real estate portfolio in Chicago, was a creature of habit. His trainer came to his house three mornings every week for a five-thirty workout. By six-thirty he was in the car and his driver drove him down into the city where he'd get a shave and trim from his barber every morning, then head over to his offices on Wacker. He always ate breakfast at his desk, had two young assistants who tended to his every whim and demand, then spent all day in and out of meetings growing a business that had already made him one of the wealthiest men in the country.
There were few surprises in his world. Or so everyone thought, until Kantor died in his sleep at age 77, leaving behind a vast fortune and grieving wife, son, and five grandchildren.
When Simon Kantor enlists Ashe Cayne to explore his father's death, the probing private investigator learns there was plenty of "activities" Elliott participated in after hours, including a sex traffic ring. And as Ashe and readers will discover this is only the beginning, and as our hero dives deeper and deeper into Elliott's hidden world, this may be the end for the intrepid Mr. Cayne.