It's 1782 and welcome to the fabulous Palace of Versailles, France. Outside the gates, the peasants are on the verge of revolting (already well past vile), whilst inside lives one of the most hated, despised and loathed …

Inspired by HBO's acclaimed drama "True Detective," Investigation Discovery brings to life actual homicide cases through the words of the law enforcement officers who are still haunted by them. "Real Detec…