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 Detective“ blends documentary and scripted elements -- and narratives driven exclusively by the detectives themselves -- to create cinematic true crime TV, with featured guest stars including Michael Madsen, Devon Sawa, Curtis Caravaggio and Zoie Palmer. Each hourlong episode ventures deep into the mind of a homicide detective as he or she describes in vivid detail the one case forever ingrained in the memory.